FIELD OF INVENTION 
     The invention pertains to storage systems. More particularly, the invention relates to a fabric device for converting a portable play yard into a storage system for a child&#39;s toys. 
     BACKGROUND OF THE INVENTION 
     Various types of storage systems and devices have been developed for organizing and storing children&#39;s toys. U.S. Pat. No. 5,360,264 issued to Crane discloses a child&#39;s play table having a reversible top providing a smooth surface on one side and a modular building block system on the other. Attached beneath the reversible surface are one or more toy storage compartments or drawers. 
     U.S. Pat. No. 4,527,688 issued to Jones et al., describes a storage case for toy vehicles, simulating the appearance of an automobile steering wheel. U.S. Pat. No. 4,200,197, issued to Meyer et al. illustrates a toy storage apparatus having a decorative face designed to appear as an animated creature and having a large internal cavity. A foot pedal opens the creature&#39;s mouth for the introduction or removal of the child&#39;s toys. U.S. Pat. No. 4,103,455 issued to Silvey discloses a toy chest of animal form mounted on casters. The chest includes a mechanism that when operated by the child to open the chest will produce sounds and animated movements of features of the chest. These features are designed to encourage the child to clean up his or her room. 
     While other variations exist, the above-described designs for toy storage devices are typical of those encountered in the prior art. It is an objective of the present invention to provide for an alternative use for a child&#39;s play yard when no longer needed to confine a small child. It is a further objective to provide for storage of both large and small toys and similar objects while making maximum use of the external surfaces of the play yard. It is a still further objective of the invention to provide the above-described capabilities in an inexpensive and durable storage system that can be easily removed from the play yard, washed, and easily reinstalled. It is yet a further objective to provide a means to secure the storage system to the play yard to prevent shifting once toys are stored in the system. 
     While some of the objectives of the present invention are disclosed in the prior art, none of the inventions found include all of the requirements identified. 
     SUMMARY OF THE INVENTION 
     The present invention addresses all of the deficiencies of prior art toy storage covers for play yards, cribs or containers and satisfies all of the objectives described above. 
     A toy storage cover for a portable play yard providing the desired features may be constructed from the following components. A portable play yard that has a rigid frame, four protruding feet, a front wall, a back wall, a first side wall, a second side wall and a floor enclosed by the walls is provided. The toy storage cover includes four outer panels. The outer front panel has an exterior surface, an interior surface, a top edge, a bottom edge, a first side edge, and a second side edge. The outer back panel has an exterior surface, an interior surface, a top edge, a bottom edge, a first side edge, and a second side edge. The outer first side panel has an exterior surface, an interior surface, a top edge, a bottom edge, a front side edge, and a back side edge. The outer second side panel has an exterior surface, an interior surface, a top edge, a bottom edge, a front side edge, and a back side edge. 
     The outer front panel is joined at its first side edge to the front side edge of the outer first side panel and is joined at its second side edge to the front side edge of the outer second side panel. The outer back panel is joined at its first side edge to the back side edge of the outer first side panel and is joined at its second side edge to the back side edge of the outer second side panel. 
     An interior pocket is provided. The interior pocket comprises four inner panels and a floor panel. The inner front panel has an exterior surface, an interior surface, a top edge, a bottom edge, a first side edge, and a second side edge. The inner back panel has an exterior surface, an interior surface, a top edge, a bottom edge, a first side edge, and a second side edge. The inner first side panel has an exterior surface, an interior surface, a top edge, a bottom edge, a front side edge, and a back side edge. The inner second side panel has an exterior surface, an interior surface, a top edge, a bottom edge, a front side edge, and a back side edge. 
     The inner front panel is joined at its first side edge to the front side edge of the inner first side panel and is joined at its second side edge to the front side edge of the inner second side panel. The inner back panel is joined at its first side edge to the back side edge of the inner first side panel and is joined at its second side edge to the back side edge of the inner second side panel. The floor panel has an upper surface, a lower surface, a front edge, a back edge, a first side edge and a second side edge. 
     The floor panel is attached at its front edge to the bottom edge of the inner front panel, at its back edge to the bottom edge of the inner back panel, at its first side edge to the bottom edge of the inner first side panel and at its second side edge to the bottom edge of the inner second side panel. The inner front panel is attached at its top edge to the top edge of the outer front panel. The inner back panel is attached at its top edge to the top edge of the outer back panel. The inner first side panel is attached at its top edge to the top edge of the outer first side panel. The inner second side panel is attached at its top edge to the top edge of the outer second side panel. 
     The outer front, back, first side and second side panels are sized and shaped to fit slidably over the play yard walls when attached together. The inner front, back, first side, second side and floor panels are sized and shaped to fit slidably within the play yard walls when attached together. When the play yard is located between the inner and outer panels the interior pocket will be supported by the play yard. 
     In a variant of the invention, a retaining means is provided. The retaining means is formed of rigid material and is sized and shaped to fit frictionally between the inner front, back, first side and second side panels and over the floor panel, thereby securing the interior pocket downwardly within the play yard. 
     In another variant, the retaining means is a mattress pad that has a rigid backing. 
     In still another variant, means are provided for securing the toy storage cover to the play yard. 
     In yet another variant of the invention; the means for securing the toy storage cover to the play yard comprises means for fastening at least one of the outer panels to one of the inner panels through openings in the play yard walls. 
     In a further variant, the means for securing the toy storage cover to the play yard comprises straps extending from the bottom edges of the outer panels that can be tied around the protruding feet of the play yard. 
     In still a further variant of the invention, first, second, third and fourth foot retaining pockets are provided. The foot retaining pockets are sized, shaped and located to fit slidably over one of the feet. 
     The first foot retaining pocket is located at an intersection of the first side edge of the outer front panel and the front side edge of the outer first side panel on the interior surfaces of the panels adjacent their bottom edges. The second foot retaining pocket is located at an intersection of the second side edge of the outer front panel and the front side edge of the outer second side panel on the interior surfaces of the panels adjacent their bottom edges. The third foot retaining pocket is located at an intersection of the first side edge of the outer back panel and the back side edge of the outer first side panel on the interior surfaces of the panels adjacent their bottom edges. The fourth foot retaining pocket is located at an intersection of the second side edge of the outer back panel and the back side edge of the outer second side panel on the interior surfaces of the panels adjacent their bottom edges. 
     When the feet of the play yard are positioned within the foot retaining pockets, the outer panels will be held down despite shifting loads placed in the interior pocket. 
     In another variant, the toy storage cover for a portable play yard includes a series of exterior pockets attached to the outer panels. 
     In still another variant, the outer and inner panels are formed of material through which a user can see. 
     In a further variant of the invention, at least one of the exterior pockets attached to the outer panels further comprises at least one smaller interior pocket or smaller exterior pocket. 
     In yet a further variant, a toy storage cover for a portable play yard, includes a portable play yard. The play yard has a rigid frame with three protruding feet, a first side wall, a second side wall, a third side wall and a floor enclosed by the walls. The toy storage cover has three outer panels. Each of the outer first side, second side and third side panels has an exterior surface, an interior surface, a top edge, a bottom edge, a first side edge, and a second side edge. 
     The outer first side panel is joined at its first side edge to the second side edge of the outer third side panel and is joined at its second side edge to the first side edge of the outer second side panel. The outer second side panel is joined at its second side edge to the first side edge of the outer third side panel. 
     An interior pocket including three inner panels is provided. Each of the inner first side, second side and third side panels has an exterior surface, an interior surface, a top edge, a bottom edge, a first side edge, and a second side edge. The inner first side panel is joined at its first side edge to the second side edge of the; inner third side panel and is joined at its second side edge to the first side edge of the inner second side panel. The inner second side panel is joined at its second side edge to the first side edge of the inner third side panel. 
     A floor panel is provided. The floor panel has an upper surface, a lower surface, a first edge, a second edge, and a third edge. The floor panel is attached at its first edge to the bottom edge of the inner first side panel, at its second edge to the bottom edge of the inner second side panel, at its third edge to the bottom edge of the inner third side panel. The inner first side panel is attached at its top edge to the top edge of the outer first side panel. The inner second side panel is attached at its top edge to the top edge of the outer second side panel. The inner third side panel is attached at its top edge to the top edge of the outer third side panel. 
     The outer first side, second side and third side panels are sized and shaped to fit slidably over the play yard walls when attached together. The inner first side, second side and third side panels and floor panel are sized and shaped to fit slidably within the play yard walls when attached together. When the play yard is located between the inner and outer panels the interior pocket will be supported by the play yard. 
     In still a further variant of the invention, the toy storage cover for a portable play yard further comprises a retaining means. The retaining means is formed of rigid material and is sized and shaped to fit frictionally between the inner first side, second side and third side panels and over the floor panel, thereby securing the interior pocket downwardly within the play yard. 
     In another variant, the retaining means is a mattress pad that has a rigid backing. 
     In a further variant of the invention, a toy storage cover for a portable play yard includes a portable play yard. The play yard includes a rigid frame that has protruding feet, a surrounding side wall and a floor enclosed by the wall. 
     The toy storage cover includes an outer surrounding side panel and an interior pocket. The outer surrounding side panel has an exterior surface, an interior surface, a top edge and a bottom edge. The interior pocket includes an inner surrounding side panel and a floor panel. The inner surrounding side panel has an exterior surface, an interior surface, a top edge and a bottom edge. The floor panel has an upper surface, a lower surface and a surrounding edge. The floor panel is attached at its surrounding edge to the bottom edge of the inner surrounding side panel. 
     The inner surrounding side panel is attached at its top edge to the top edge of the outer surrounding side panel. The outer surrounding side panel is sized and shaped to fit slidably over the surrounding side wall of the play yard. The inner surrounding side panel and floor panel are sized and shaped to fit slidably within the play yard walls. When the play yard is located between the inner and outer surrounding side panels the interior pocket will be supported by the play yard. 
     In still a further variant, the toy storage cover for a portable play yard further comprises a retaining means. The retaining means is formed of rigid material and is sized and shaped to fit frictionally within the inner surrounding side panel and over the floor panel, thereby securing the interior pocket downwardly within the play yard. 
     In yet a further variant, the retaining means is a mattress pad that has a rigid backing. 
     In another variant of the invention, a toy storage cover for an open topped container includes a container comprising a floor, a rigid surrounding side wall extending upwardly from the floor. The toy storage cover includes an outer surrounding side panel and an interior pocket. The outer surrounding side panel has an exterior surface, an interior surface, a top edge and a bottom edge. 
     The interior pocket includes an inner surrounding side panel and a floor panel. The inner surrounding side panel has an exterior surface, an interior surface, a top edge and a bottom edge. The floor panel has an upper surface, a lower surface and a surrounding edge. The floor panel is attached at its surrounding edge to the bottom edge of the inner surrounding side panel. The inner surrounding side panel is attached at its top edge to the top edge of the outer surrounding side panel. 
     The outer surrounding side panel is sized and shaped to fit slidably over the rigid surrounding side wall of the container. The inner surrounding side panel and floor panel are sized and shaped to fit slidably within the container. When the container is located between the inner and outer surrounding side panels the interior pocket will be supported by the container. 
     In still another variant, the toy storage cover for an open topped container further comprises a retaining means. The retaining means is formed of rigid material and is sized and shaped to fit frictionally within the inner surrounding side panel and over the floor panel, thereby securing the interior pocket downwardly within the container. 
     In a further variant of the invention, the retaining means is a mattress pad that has a rigid backing. 
     In yet another variant, a toy storage cover for a crib includes a crib. The crib includes a rigid frame and has four protruding feet, a front wall, a back wall, a first side wall, a second side wall and a floor enclosed by the walls. The toy storage cover includes four outer panels, an outer front panel, an outer back panel, an outer first side panel and an outer second side panel. The outer panels are attached to each other at their side edges. 
     The toy storage cover includes an interior pocket that includes four inner panels, an inner front panel, an inner back panel, an inner first side panel and an inner second side panel and a floor panel. The four inner panels are attached to each other at their side edges and to the floor panel at their bottom edges. The inner panels are attached at their top edges to the top edges of the outer panels. The outer front, back, first side and second side panels are sized and shaped to fit slidably over the crib walls when attached together. The inner front, back, first side, second side and floor panels are sized and shaped to fit slidably within the crib walls when attached together. When the crib is located between the inner and outer panels the interior pocket will be supported by the crib. 
     In still another variant of the invention, the toy storage cover for a crib further comprises a retaining means. The retaining means is formed of rigid material and is sized and shaped to fit frictionally between the inner front, back, first side and second side panels and over the floor panel, thereby securing the interior pocket downwardly within the crib. 
     In a further variant, the retaining means is a mattress pad has a rigid backing. 
     In another variant of the invention, a toy storage cover for a collapsible open topped container includes a container. The container includes a front wall, a back wall, a first side wall, a second side wall and a floor enclosed by the walls. Each of the walls has a top edge, a bottom edge, a first side edge, a second side edge, an inner surface and an outer surface. The floor has a front edge, a back edge, a first side edge, a second side edge, a top surface and a bottom surface. 
     The front wall is hingedly attached at its bottom edge to the front edge of the floor and the back wall is hingedly attached at its bottom edge to the back edge of the floor. The first side wall is hingedly attached at its bottom edge to the first side edge of the floor and the second side wall is hingedly attached at its bottom edge to the second side edge of the floor. 
     Means are provided for removabaly attaching the front wall at its first side edge to the first side wall at its second side edge. Means are provided for removabaly attaching the front wall at its second side edge to the second side wall at its first side edge. Means are provided for removabaly attaching the back wall at its second side edge to the first side wall at its first side edge. Means are provided for removabaly attaching the back wall at its first side edge to the second side wall at its second side edge. 
     The toy storage cover includes four outer panels. The outer front panel has an exterior surface, an interior surface, a top edge, a bottom edge, a first side edge, and a second side edge. The outer back panel has an exterior surface, an interior surface, a top edge, a bottom edge, a first side edge, and a second side edge. The outer first side panel has an exterior surface, an interior surface, a top edge, a bottom edge, a front side edge, and a back side edge. The outer second side panel has an exterior surface, an interior surface, a top edge, a bottom edge, a front side edge, and a back side edge. 
     The outer front panel is joined at its first side edge to the front side edge of the outer first side panel and is joined at its second side edge to the front side edge of the outer second side panel. The outer back panel is joined at its first side edge to the back side edge of the outer first side panel and is joined at its second side edge to the back side edge of the outer second side panel. 
     An interior pocket is provided. The interior pocket includes four inner panels and a floor panel. The inner front panel has an exterior surface, an interior surface, a top edge, a bottom edge, a first side edge, and a second side edge. The inner back panel has an exterior surface, an interior surface, a top edge, a bottom edge, a first side edge, and a second side edge. The inner first side panel has an exterior surface, an interior surface, a top edge, a bottom edge, a front side edge, and a back side edge. The inner second side panel has an exterior surface, an interior surface, a top edge, a bottom edge, a front side edge, and a back side edge. 
     The inner front panel is joined at its first side edge to the front side edge of the inner first side panel and is joined at its second side edge to the front side edge of the inner second side panel. The inner back panel is joined at its first side edge to the back side edge of the inner first side panel and is joined at its second side edge to the back side edge of the inner second side panel. 
     The floor panel has an upper surface, a lower surface, a front edge, a back edge, a first side edge and a second side edge. The floor panel is attached at its front edge to the bottom edge of the inner front panel, at its back edge to the bottom edge of the inner back panel, at its first side edge to the bottom edge of the inner first side panel and at its second side edge to the bottom edge of the inner second side panel. The inner front panel is attached at its top edge to the top edge of the outer front panel. The inner back panel is attached at its top edge to the top edge of the outer back panel. The inner first side panel is attached at its top edge to the top edge of the outer first side panel. The inner second side panel is attached at its top edge to the top edge of the outer second side panel. 
     The outer front, back, first side and second side panels are sized and shaped to fit slidably over the container walls when attached together. The inner front, back, first side, second side and floor panels are sized and shaped to fit slidably within the container walls when attached together. When the container is located between the inner and outer panels the interior pocket, will be supported by the container. 
     In still another variant, the toy storage cover includes at least one attachment strap. The attachment strap has a first end and a second end and is fixedly attached at its first end to the lower surface of the floor panel of the interior pocket. The strap extends outwardly past one of the inner panels. The second end of the attachment strap includes means for removably attaching the second end to either the exterior surface or the interior surface of one of the outer panels. 
     The container includes at least one slot. The slot is sized, shaped and located adjacent the bottom edge of one of the walls of the collapsible container so as to permit the second end of the attachment strap to pass through it. When the second end of the attachment strap is passed through the slot and removably attached to either the exterior surface or the interior surface of at least one of the outer panels, the interior pocket of the toy storage cover will be removably secured to the collapsible container. 
     In yet another variant, the means for removably attaching the front and back walls of the container to the first and second side walls of the container includes hooking and loop elements secured to either the inner surface or the outer surface of the walls adjacent their side edges. 
     In a further variant of the invention, the means for removably attaching the second end of the attachment strap to either the exterior surface or the interior surface of one of the outer panels includes hooking and loop elements secured to the second end and either the exterior surface or the interior surface of at least one of the outer panels. 
     In still a further variant, a retaining means is provided. The retaining means is formed of rigid material and is sized and shaped to fit frictionally between the inner front, back, first side and second side panels and over the floor panel, thereby securing the interior pocket downwardly within the container; 
     In yet a further variant, the retaining means is a mattress pad that has a rigid backing. 
     In another variant of the invention, the toy storage cover for a collapsible open topped container includes means for securing the toy storage cover to the container. 
     In a final variant, the means for securing the toy storage cover to the container comprises means for fastening at least one of the outer panels to one of the inner panels through openings in the container walls. 
     An appreciation of the other aims and objectives of the present invention and an understanding of it may be achieved by referring to the accompanying drawings and the detailed description of a preferred embodiment. 
    
    
     DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective view of the preferred embodiment of the invention disposed upon a portable play yard; 
     FIG. 2 is a perspective view of the play yard; 
     FIG. 3 is a plan view layout of the outer, inner and floor panels of the FIG. 1 embodiment; 
     FIG. 3 a  is a plan view layout of the outer, inner and floor panels of the FIG. 1 embodiment as seen from below illustrating the placement of the foot pockets; 
     FIG. 4 is perspective view of the mattress pad retaining means for the FIG. 1; 
     FIG. 5 is a perspective view of the FIG. 1 embodiment illustrating attachment of the outer panels to the inner panels through openings in the play yard walls; 
     FIG. 6 is a perspective view of the FIG. 1 embodiment illustrating attachment of the cover to the play yard by means of straps tied around the feet of the play yard; 
     FIG. 7 is a perspective view of the FIG. 1 embodiment illustrating attachment of the cover to the play yard by means of pockets for enclosing the protruding feet of the play yard; 
     FIG. 8 is a perspective view of the FIG. 1 embodiment illustrating a plurality of pockets affixed to the outer panels; 
     FIG. 9 is a perspective view of the FIG. 1 embodiment illustrating see-through inner and outer panels; 
     FIG. 10 is a detail perspective view of a portion of the the FIG. 1 embodiment illustrating smaller pockets attached to the inside and outside of larger pockets; 
     FIG. 11 is a perspective view of a second embodiment of the invention disposed upon a portable play yard having three sides; 
     FIG. 12 is a perspective view of the three-sided play yard; 
     FIG. 13 is a plan view layout of the outer, inner and floor panels of the FIG. 11 embodiment; 
     FIG. 14 is perspective view of the mattress pad retaining means for the FIG. 11 embodiment; 
     FIG. 15 is a perspective view of a third embodiment of the invention disposed upon a portable play yard having a curved surrounding outer wall; 
     FIG. 16 is a perspective view of the play yard having a curved surrounding outer wall; 
     FIG. 17 is a plan view layout of the outer, inner and floor panels of the FIG. 15 embodiment; 
     FIG. 18 is perspective view of the mattress pad retaining means for the FIG. 15 embodiment; 
     FIG. 19 is a perspective view of a fourth embodiment of the invention disposed upon an open topped container having a surrounding outer wall; 
     FIG. 20 is a perspective view of the open topped container; 
     FIG. 21 is a plan view layout of the outer, inner and floor panels of the FIG. 19 embodiment; 
     FIG. 22 is perspective view of the retaining means for the FIG. 19 embodiment; 
     FIG. 23 is a perspective view of a fifth embodiment of the invention disposed upon a crib; 
     FIG. 24 is a perspective view of the crib; 
     FIG. 25 is a plan view layout of the outer, inner and floor panels of the FIG. 23 embodiment; 
     FIG. 26 is perspective view of the retaining means for the FIG. 23 embodiment; 
     FIG. 27 is a perspective view of a sixth embodiment of the invention disposed upon a collapsible open topped container; 
     FIG. 28 is a perspective view of the collapsible container; 
     FIG. 29 is a plan view layout of the outer, inner and floor panels of the FIG. 27 embodiment; 
     FIG. 30 is a plan view of an attachment strap affixed to the lower surface of the floor panel of the FIG. 27 embodiment; 
     FIG. 30 a  is a partial cut-away perspective view of an attachment strap affixed to the lower surface of the floor panel of the FIG. 27 embodiment; 
     FIG. 31 is perspective view of the retaining means for the FIG. 27 embodiment; and 
     FIG. 32 is a perspective view of the FIG. 27 embodiment illustrating attachment of the outer panels to the inner panels through openings in the container walls. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     FIGS. 1-10 illustrate a toy storage cover for a portable play yard  10  providing the desired features that may be constructed from the following components. A portable play yard  14 , as illustrated in FIG. 2, that has a rigid frame  18 , four protruding feet  22 , a front wall  26 , a back wall  30 , a first side wall  34 , a second side wall  38  and a floor  42  enclosed by the walls  26 , 30 , 34 ,  38  is provided. As illustrated in FIGS. 1 and 3, the toy storage cover  10  includes four outer panels  46 ,  50 ,  54 ,  58 . The outer front panel  46  has an exterior surface  62 , an interior surface  66 , a top edge  70 , a bottom edge  74 , a first side edge  78 , and a second side edge  82 . The outer back panel  50  has an exterior surface  86 , an interior surface  90 , a top edge  94 , a bottom edge  98 , a first side edge  102 , and a second side edge  106 . The outer first side panel  54  has an exterior surface  110 , an interior surface  114 , a top edge  118 , a bottom edge  122 , a front side edge  126 , and a back side edge  130 . The outer second side panel  58  has an exterior surface  134 , an interior surface  138 , a top edge  142 , a bottom edge  146 , a front side edge  150 , and a back side edge  154 . 
     The outer front panel  46  is joined at its first side edge  78  to the front side edge  126  of the outer first side panel  54  and is joined at its second side edge  82  to the front side edge  150  of the outer second side panel  58 . The outer back panel  50  is joined at its first side edge  102  to the back side edge  130  of the outer first side panel  54  and is joined at its second side edge  106  to the back side edge  154  of the outer second side panel  58 . 
     An interior pocket  158  is provided. The interior pocket  158  comprises four inner panels  162 ,  166 ,  170 ,  174  and a floor panel  178 . The inner front panel  162  has an exterior surface  182 , an interior surface  186 , a top edge  190 , a bottom edge  194 , a first side edge  198 , and a second side edge  202 . The inner back panel  166  has an exterior surface  206 , an interior surface  210 , a top edge  214 , a bottom edge  218 , a first side edge  222 , and a second side edge  226 . The inner first side panel  170  has an exterior surface  230 , an interior surface  234 , a top edge  238 , a bottom edge  242 , a front side edge  246 , and a back side edge  250 . The inner second side panel  174  has an exterior surface  254 , an interior surface  258 , a top edge  262 , a bottom edge  266 , a front side edge  270 , and a back side edge  274 . 
     The inner front panel  162  is joined at its first side edge  198  to the front side edge  246  of the inner first side panel  170  and is joined at its second side edge  202  to the front side edge  270  of the inner second side panel  174 . The inner back panel  166  is joined at its first side edge  222  to the back side edge  250  of the inner first side panel  170  and is joined at its second side edge  226  to the back side edge  274  of the inner second side panel  174 . The floor panel  178  has an upper surface  278 , a lower surface  282 , a front edge  286 , a back edge  290 , a first side edge  294  and a second side edge  298 . 
     The floor panel  178  is attached at its front edge  286  to the bottom edge  194  of the inner front panel  162 , at its back edge  290  to the bottom edge  218  of the inner back panel  166 , at its first side edge  294  to the bottom edge  242  of the, inner first side panel  170  and at its second side edge  298  to the bottom edge  266  of the inner second side panel  174 . The inner front panel  162  is attached at its top edge  190  to the top edge  70  of the outer front panel  46 . The inner back panel  166  is attached at its top edge  214  to the top edge  94  of the outer back panel  50 . The inner first side panel  170  is attached at its top edge  238 ,to the top edge  118  of the outer first side panel  54 . The inner second side panel  174  is attached at its top edge  262  to the top edge  142  of the outer second side panel  58 . 
     The outer front  46 , back  50 , first side  54  and second side  58  panels are sized and shaped to fit slidably over the play yard walls  26 ,  30 ,  34 ,  38  when attached together. The inner front  162 , back  166 , first side  170 , second side  174  and floor panels  178  are sized and shaped to fit slidably within the play yard walls  26 ,  30 ,  34 ,  38  when attached together. When the play yard  10  is located between the inner  162 ,  166 ,  170 ,  174  and outer  46 ,  50 ,  54 ,  58  panels the interior pocket  158  will be supported by the play yard  14 . 
     In a variant of the invention, as illustrated in FIG. 4, a retaining means  302  is provided. The retaining means  302  is formed of rigid material and is sized and shaped to fit frictionally between the inner front  162 , back  166 , first side  170  and second side  174  panels and over the floor panel  178 , thereby securing the interior pocket  158  downwardly within the play yard  14 . 
     In another variant, the retaining means  302  is a mattress pad  306  that has a rigid backing  310 . 
     In still another variant, as illustrated in FIGS. 5 and 7, means  314  are provided for securing the toy storage cover  10  to the play yard  14 . 
     In yet another variant of the invention, as illustrated in FIG. 5, the means  314  for securing the toy storage cover  10  to the play yard  14  comprises means  318  for fastening at least one of the outer panels  46 ,  50 ,  54 ,  58  to one of the inner panels  162 ,  166 ,  170 ,  174  through openings  322  in the play yard walls  26 ,  30 ,  34 ,  38 . 
     In a further variant, as illustrated in FIG. 6, the means  314  for securing the toy storage cover  10  to the play yard  14  comprises straps  326  extending from the bottom edges  74 ,  98 ,  122 ,  146  of the outer panels  46 ,  50 ,  54 ,  58  that can be tied around the protruding feet  22  of the play yard  14 . 
     In still a further variant of the invention, as illustrated in FIG. 7, first  330 , second  334 , third  338  and fourth  342  foot retaining pockets are provided. The foot retaining pockets  330 ,  334 ,  338 ,  342  are sized, shaped and located to fit slidably over one of the feet  22 . 
     As illustrated in FIG. 3 a , the first foot retaining pocket  330  is located at an intersection  346  of the first side edge  78  of the outer front panel  46  and the front side edge  126  of the outer first side panel  54  on the interior surfaces  66 ,  114  of the panels  46 ,  54  adjacent their bottom edges  74 ,  122 . The second foot retaining pocket  334  is located at an intersection  350  of the second side edge  82  of the outer front panel  46  and the front side edge  150  of the outer second side panel  58  on the interior surfaces  66 ,  138  of the panels  46 ,  58  adjacent their bottom edges  74 ,  146 . The third foot retaining pocket  338  is located at an intersection  354  of the first side edge  102  of the outer back panel  50  and the back side edge  130  of the outer first side panel  54  on the interior surfaces  90 ,  114  of the panels  50 ,  54  adjacent their bottom edges  98 ,  122 . The fourth foot retaining pocket  342  is located at an intersection  358  of the second side edge  106  of the outer back panel  50  and the back side edge  154  of the outer second side panel  58  on the interior surfaces  90 ,  138  of the panels  50 ,  58  adjacent their bottom edges  98 ,  146 . 
     When the feet  22  of the play yard  14  are positioned within the foot retaining pockets  330 ,  334 ,  338 ,  342 , the outer panels  46 ,  50 ,  54 ,  58  will be held down despite shifting loads placed in the interior pocket  158 . 
     In another variant, as illustrated in FIG. 8, the toy storage cover  10  for a portable play yard  14  includes a series of exterior pockets  362  attached to the outer panels  46 ,  50 ,  54 ,  58 . 
     In still another variant, as illustrated in FIG. 9, the outer  46 ,  50 ,  54 ,  58  and inner  162 ,  166 ,  170 ,  174  panels are formed of material  366  through which a user  370  can see. 
     In a further variant of the invention, as illustrated in FIG. 10, at least one of the exterior pockets  362  attached to the outer panels  46 ,  50 ,  54 ,  58  further comprises at least one smaller interior pocket  374  or smaller exterior pocket  378 . 
     In yet a further variant, as illustrated in FIGS. 11-14, a toy storage cover  382  for a portable play yard, includes a portable play yard  386 . The play yard  386 , as illustrated in FIG. 12, has a rigid frame  390  with three protruding feet  394 , a first side wall  398 , a second side wall  402 , a third side wall  406  and a floor  410  enclosed by the walls  398 ,  402 ,  406 . The toy storage cover  382  has three outer panels  414 ,  418 ,  422 . As illustrated in FIGS. 11 and 13, each of the outer first side  414 , second side  418  and third side  422  panels has an exterior surface  426 , an interior surface  428 , a top edge  432 , a bottom edge  436 , a first side edge  440 , and a second side edge  444 . 
     The outer first side panel  414  is joined at its first side edge  440  to the second side edge  444  of the outer third side panel  422  and is joined at its second side edge  444  to the first side edge  440  of the outer second side panel  418 . The outer second side panel  418  is joined at its second side edge  444  to the first side edge  440  of the outer third side panel  422 . 
     An interior pocket  448  including three inner panels  452 ,  456 ,  460  is provided. Each of the inner first side, second side and third side panels  452 ,  456 ,  460  has an exterior surface  464 , an interior surface  468 , a top edge  472 , a bottom edge  476 , a first side edge  480 , and a second side edge  484 . The inner first side panel  452  is joined at its first side edge  480  to the second side edge  484  of the inner third side panel  460  and is joined at its second side edge  484  to the first side edge  480  of the inner second side panel  456 . The inner second side panel  456  is joined at its second side edge  484  to the first side edge  480  of the inner third side panel  460 . 
     A floor panel  488  is provided. The floor panel  488  has an upper surface  492 , a lower surface  496 , a first edge  500 , a second edge  504 , and a third edge  508 . The floor panel  488  is attached at its first edge  500  to the bottom edge  476  of the inner first side panel  452 , at its second edge  504  to the bottom edge  476  of the inner second side panel  456 , at its third edge  508  to the bottom edge  476  of the inner third side panel  460 . The inner first side panel  452  is attached at its top edge  472  to the top edge  432  of the outer first side panel  414 . The inner second side panel  456  is attached at its top edge  472  to the top edge  432  of the outer second side panel  418 . The inner third side panel  460  is attached at its top edge  472  to the top edge  432  of the outer third side panel  422 . 
     The outer first side  414 , second side  418  and third side  422 :panels are sized and shaped to fit slidably over the play yard walls  398 ,  402 ,  406  when attached together. The inner first side  452 , second side  456  and third side  460  panels and floor panel  488  are sized and shaped to fit slidably within the play yard walls  398 ,  402 ,  406  when attached together. When the play yard  386  is located between the inner  452 ,  456 ,  460  and outer  414 ,  418 ,  422  panels the interior pocket  448  will be supported by the play yard  386 . 
     In still a further variant of the invention, as illustrated in FIG. 14, the toy storage cover  382  for a portable play yard  386  further comprises a retaining means  512 . The retaining means  512  is formed of rigid material  516  and is sized and shaped to fit frictionally between the inner first side  452 , second side  456  and third side  460  panels and over the floor panel  488 , thereby securing the interior pocket  448  downwardly within the play yard  386 . 
     In another variant, the retaining means  512  is a mattress pad,  520  that has a rigid backing  524 . 
     In a further variant of the invention, as illustrated in FIG. 15, a toy storage cover for a portable play yard  528  includes a portable play yard  532 . The play yard  532 , as illustrated in FIG. 16, includes a rigid frame  536  that has protruding feet  540 , a surrounding side wall  544  and a floor  548  enclosed by the wall  544 . 
     As illustrated in FIGS. 15 and 17, the toy storage cover  528  includes an outer surrounding side panel  550  and an interior pocket  552 . The outer surrounding side panel  550  has an exterior surface  556 , an interior surface  560 , a top edge  564  and a bottom edge  568 . The interior pocket  552  includes an inner surrounding side panel  572  and a floor panel  576 . The inner surrounding side panel  572  has an exterior surface  576 , an interior surface  580 , a top edge  584  and a bottom edge  588 . The floor panel  592  has an upper surface  596 , a lower surface  600  and a surrounding edge  604 . The floor panel  592  is attached at its surrounding edge  604  to the bottom edge  588  of the inner surrounding side panel  572 . 
     The inner surrounding side panel  572  is attached at its top edge  584  to the top edge  564  of the outer surrounding side panel  548 . The outer surrounding side panel  548  is sized and shaped to fit slidably over the surrounding side wall  544  of the play yard  532 . The inner surrounding side panel  572  and floor panel  576  are sized and shaped to fit slidably within the play yard walls  544 . When the play yard  532  is located between the inner  572  and outer  548  surrounding side panels the interior pocket  552  will be supported by the play yard  532 . 
     In still a further variant, as illustrated in FIG. 18, the toy storage cover for a portable play yard  528  further comprises a retaining means  608 . The retaining means  608  is formed of rigid material  612  and is sized and shaped to fit frictionally within, the inner surrounding side panel  572  and over the floor panel  576 , thereby securing the interior pocket  552  downwardly within the play yard  532 . 
     In yet a further variant, the retaining means  608  is a mattress pad  616  that has a rigid backing  620 . 
     In another variant of the invention, as illustrated in FIGS. 19 and 21, a toy storage cover for an open topped container  624  includes a container  630 , as illustrated in FIG. 20, comprising a floor  634 , a rigid surrounding side wall  638  extending upwardly from the floor  634 . The toy storage cover  624 , as illustrated in FIGS. 19 and 21, includes an outer surrounding side panel  642  and an interior pocket  646 . The outer surrounding side panel  642  has an exterior surface  650 , an interior surface  654 , a top edge  658  and a bottom edge  662 . 
     The interior pocket  646  includes an inner surrounding side panel  666  and a floor panel  670 . The inner surrounding side panel  666  has an exterior surface  674 , an interior surface  678 , a top edge  682  and a bottom edge  686 . The floor panel  670  has an upper surface  690 , a lower surface  694  and a surrounding edge  698 . The floor panel  670  is attached at its surrounding edge  698  to the bottom edge  686  of the inner surrounding side panel  666 . The inner surrounding side panel  666  is attached at its top edge  682  to the top edge  658  of the outer surrounding side panel  642 . 
     The outer surrounding side panel  642  is sized and shaped to fit slidably over the rigid surrounding side wall  638  of the container  630 . The inner surrounding side panel  666  and floor panel  670  are sized and shaped to fit slidably within the container  630 . When the container  630  is located between the inner  666  and outer  642  surrounding side panels the interior pocket  646  will be supported by the container  630 . 
     In still another variant, as illustrated in FIG. 22, the toy storage cover for an open topped container  624  further comprises a retaining means  702 . The retaining means  702  is formed of rigid material  706  and is sized and shaped to fit frictionally within the inner surrounding side panel  666  and over the floor panel  670 , thereby securing the interior pocket  646  downwardly within the container  630 . 
     In a further variant of the invention, as illustrated in FIG. 22, the retaining means  702  is a mattress pad  710  that has a rigid backing  714 . 
     In yet another variant, as illustrated in FIGS. 23 and 25, a toy storage cover for a crib  718  includes a crib  722 . The crib  722 , as illustrated in FIG. 24, includes a rigid frame  726  and has four protruding feet  730 , a front wall  734 , a back wall  738 , a first side wall  742 , a second side wall  746  and a floor  750  enclosed by the walls  734 ,  738 ,  742 ,  746 . The toy storage cover  718 , as illustrated in FIGS. 23 and 25, includes four outer panels  754 ,  758 ,  762 ,  766 , an outer front panel  754 , an outer back panel  758 , an outer first side panel  762  and an outer second side panel  766 . The outer panels  754 ,  758 ,  762 ,  766  are attached to each other at their side edges  770 . 
     The toy storage cover  718  includes an interior pocket  774  that includes four inner panels  778 ,  782 ,  786 ,  790 , an inner front panel  778 , an inner back panel  782 , an inner first side panel  786 , and an inner second side panel  790  and a floor panel  794 . The four inner panels  778 ,  782 ,  786 ,  790  are attached to each other at their side edges  772  and to the floor panel  794  at their bottom edges  798 . The inner panels  778 ,  782 ,  786 ,  790  are attached at their top edges  802  to the top edges  806  of the outer panels  754 ,  758 ,  762 ,  766 . The outer front  754 , back  758 , first side  762  and second side  766  panels are sized and shaped to fit slidably over the crib walls  734 ,  738 ,  742 ,  746  when attached together. The inner front  778 , back  782 , first side  786 , second side  790  and floor  794  panels are sized and shaped to fit slidably within the crib walls  734 ,  738 ,  742 ,  746  when attached together. When the crib  718  is located between the inner  778 ,  782 ,  786 ,  790  and outer  754 ,  758 ,  7629   766  panels the interior pocket  774  will be supported by the crib  718 . 
     In still another variant of the invention, as illustrated in FIG. 26, the toy storage cover for a crib  718  further comprises a retaining means  810 . The retaining means  810  is formed of rigid material  814  and is sized and shaped to fit frictionally between the inner front  778 , back  782 , first side  786  and second side  790  panels and over the floor panel  794 , thereby securing the interior pocket  774  downwardly within the crib  718 . 
     In a further variant, the retaining means  810  is a mattress pad  818  has a rigid backing  822 . 
     In another variant of the invention, as illustrated in FIGS. 27 and 29, a toy storage cover for a collapsible open topped container  826  includes a container  830 . The container  830 , as illustrated in FIG. 28, includes a front wall  834 , a back wall  838 , a first side wall  842 , a second side wall  846  and a floor  850  enclosed by the walls  834 ,  838 ,  842 ,  846 . Each of the walls  834 ,  838 ,  842 ,  846  has a top edge  854 , a bottom edge  858 , a first side edge  862 , a second side edge  866 , an inner surface  870  and an outer surface  874 . The floor  850  has a front edge  878 , a back edge (not shown), a first side edge (not shown), a second side edge  890 , a top surface (not shown) and a bottom surface (not shown). 
     The front wall  834  is hingedly attached at its bottom edge  858  to the front edge  878  of the floor  850  and the back wall  838  is hingedly attached at its bottom edge  858  to the back edge of the floor  850 . The first side wall  842  is hingedly attached at its bottom edge  858  to the first side edge of the floor  850  and the second side wall  846  is hingedly attached at its bottom edge  858  to the second side edge  890  of the floor  850 . 
     Means  902  are provided for removably attaching the front wall  834  at its first side edge  862  to the first side wall  842  at its second side edge  866 . Means  902  are provided for removably attaching the front wall  834  at its second side edge  866  to the second side wall  846  at its first side edge  862 . Means  902  are provided for removabaly attaching the back wall  838  at its second side edge  866  to the first side wall  842  at its first side edge  862 . Means  902  are provided for removabaly attaching the back wall  838  at its first side edge  862  to the second side wall  846  at its second side edge  866 . 
     The toy storage cover  826 , as illustrated in FIGS. 27 and 29, includes four outer panels  906 ,  910 ,  914 ,  918 . The outer front panel  906  has an exterior surface  922 , an interior surface  926 , a top edge  930 , a bottom edge  934 , a first side edge  938 , and a second side edge  942 . The outer back panel  910  has an exterior surface  946 , an interior surface  950 , a top edge  954 , a bottom edge  958 , a first side edge  962 , and a second side edge  966 . The outer first side panel  914  has an exterior surface  970 , an interior surface  974 , a top edge  978 , a bottom edge  982 , a front side edge  986 , and a back side edge  990 . The outer second side panel  918  has an exterior surface  994 , an interior surface  998 , a top edge  1002 , a bottom edge  1006 , a front side edge  1010 , and a back side edge  1014 . 
     The outer front panel  906  is joined at its first side edge  938  to the front side edge  986  of the outer first side panel  914  and is joined at its second side edge  942  to the front side edge  1010  of the outer second side panel  918 . The outer back panel  910  is joined at its first side edge  962  to the back side edge  990  of the outer first side panel  914  and is joined at its second side edge  966  to the back side edge  1014  of the outer second side panel  918 . 
     An interior pocket  1018  is provided. The interior pocket  1018  includes four inner panels  1022 ,  1026 ,  1030 ,  1034  and a floor panel  1038 . The inner front panel  1022  has an exterior surface  1042 , an interior surface  1046 , a top edge  1050 , a bottom edge  1054 , a first side edge  1058 , and a second side edge.  1062 . The inner back panel  1026  has an exterior surface  1066 , an interior surface  1070 , a top edge  1074 , a bottom edge  1078 , a first side edge  1082 , and a second side edge  1086 . The inner first side panel  1030  has an exterior surface  1090 , an interior surface  1094 , a top edge  1098 , a bottom edge  1102 , a front side edge  1106 , and a back side edge  1110 . The inner second side panel  1034  has an exterior surface  1114 , an interior surface  1118 , a top edge  1122 , a bottom edge  1126 , a front side edge  1130 , and a back side edge  1134 . 
     The inner front panel  1022  is joined at its first side edge  1058  to the front side edge  1106  of the inner first side panel  1030  and is joined at its second side edge  1062  to the front side edge  1130  of the inner second side panel  1034 . The inner back panel  1026  is joined at its first side edge  1082  to the back side edge  1110  of the inner first side panel  1030  and is joined at its second side edge  1086  to the back side edge  1134  of the inner second side panel  1034 . 
     The floor panel  1038  has an upper surface  1138 , a lower surface  1142 , a front edge  1146 , a back edge  1150 , a first side edge  1154  and a second side edge  1158 . The floor panel  1038  is attached at its front edge  1146  to the bottom edge  1054  of the inner front panel  1022 , at its back edge  1150  to the bottom edge  1078  of the inner back panel  1026 , at its first side edge  1154  to the bottom edge  1102  of the inner first side panel  1030  and at its second side edge  1158  to the bottom edge  1126  of the inner second side panel  1034 . The inner front panel  1022  is attached at its top edge  1050  to the top edge  930  of the outer front panel  906 . The inner back panel  1026  is attached at its top edge  1074  to the top edge  954  of the outer back panel  910 . The inner first side panel  1030  is attached at its top edge  1098  to the top edge  978  of the outer first side panel  914 . The inner second side panel  1034  is attached at its top edge  1122  to the top edge  1002  of the outer second side panel  918 . 
     The outer front  906 , back  910 , first side  914  and second side  918  panels are sized and shaped to fit slidably over the container walls  834 ,  838 ,  842 ,  846  when attached together. The inner front  1022 , back  1026 , first side  1030 , second side  1034  and floor  1038  panels are sized and shaped to fit slidably within the container walls  834 ,  838 ,  842 ,  846  when attached together. When the container  830  is located between the inner  1022 ,  1026 ,  1030 ,  1034  and outer  906 ,  910 ,  914 ,  918  panels the interior pocket  1018  will be supported by the container  830 . 
     In still another variant, as illustrated in FIGS. 30 and 30 a , the toy storage cover  826  includes at least one attachment strap  1162 . The attachment strap  1162  has a first end  1166  and a second end  1170  and is fixedly attached at its first end  1166  to the lower surface  1142  of the floor panel  1038  of the interior pocket  1018 . The strap  1162  extends outwardly past one of the inner panels  1022 ,  1026 ,  1030 ,  1034 . The second end  1170  of the attachment strap  1162  includes means  1174  for removably attaching the second end  1170  to either the exterior surface  922 ,  946 ,  970 ,  994  or the interior surface  926 ,  950 ,  974 ,  998  of one of the outer panels  906 ,  910 ,  914 ,  918 . 
     The container  830 , as illustrated in FIG. 28, includes at least one slot  1178 . The slot  1178  is sized, shaped and located adjacent the bottom edge  858  of one of the walls  834 ,  838 ,  842 ,  846  of the collapsible container  830  so as to permit the second end  1170  of the attachment strap  1162  to pass through it. When the second end  1170  of the attachment strap  1162  is passed through the slot  1178  and removably attached to either the exterior surface  922 ,  946 ,  970 ,  994  or the interior surface  926 ,  950 ,  974 ,  998  of at least one of the outer panels  906 ,  910 ,  914 ,  918 , the interior pocket  1018  of the toy storage cover  826  will be removably secured to the collapsible container  830 . 
     In yet another variant, as illustrated in FIG. 28, the means  902  for removably attaching the front  834  and back  838  walls of the container  830  to the first  842  and second  846  side walls of the container  830  includes hooking and loop elements  1182  secured to either the inner surface  870  or the outer surface  874  of the walls  834 ,  838 ,  842 ,  846  adjacent their side edges  862 ,  866 . 
     In a further variant of the invention, as illustrated in FIG. 30, the means  1174  for removably attaching the second end  1170  of the attachment strap  1162  to either the exterior surface  922 ,  946 ,  970 ,  994  or the interior surface  926 ,  950 ,  974 ,  998  of one of the outer panels  906 ,  910 ,  914 ,  918  includes hooking and loop elements  1182  secured to the second end  1170  and either the exterior surface  922 ,  946 ,  970 ,  994  or the interior surface  926 ,  950 ,  974 ,  998  of at least one of the outer panels  906 ,  910 ,  914 ,  918 . 
     In still a further variant, as illustrated in FIG. 31, a retaining means  1186  is provided. The retaining means  1186  is formed of rigid material  1190  and is sized and shaped to fit frictionally between the inner front  1022 , back  1026 , first side  1030  and second side  1034  panels and over the floor panel  1038 , thereby securing the interior pocket  1018  downwardly within the container  830 . 
     In yet a further variant, the retaining means  1186  is a mattress pad  1194  that has a rigid backing  1198 . 
     In another variant of the invention, as illustrated in FIG. 32, the toy storage cover for a collapsible open topped container  826  includes means  1202  for securing the toy storage cover  826  to the container  830 . 
     In a final variant, as illustrated in FIG. 32, the means  1202  for securing the toy storage cover  826  to the container  830  comprises means  1206  for fastening at least one of the outer panels  906 ,  910 ,  914 ,  918  to one of the inner panels  1022 ,  1026 ,  1030 ,  1034  through openings  1210  in the container walls  834 ,  838 ,  842 ,  846 . 
     The toy storage covers for portable play yards  10 ,  382 ,  528 , cribs  718  and containers  624 ,  826  have been described with reference to particular embodiments. Other modifications and enhancements can be made without departing from the spirit and scope of the claims that follow.
A toy storage cover for a portable play yard is described. The toy storage cover includes four outer panels shaped to surround the outer walls of the play yard attached at their top edges to four inner panels shaped to line the play yard. A floor panel joins the inner panels and is secured to the floor of the play yard by a mattress pad shaped to fit within the inner panels above the floor of the play yard. A series of pockets are attached to the outer panels of the cover. The pockets have smaller pockets within them or on their outer surfaces. Tie-down straps, fitted foot pockets or attachments through the play yard walls are used to secure the cover to the play yard. The toy storage cover may be adapted to play yards of various designs, cribs or other open topped containers. A collapsible container, sized and shaped to fit between the inner and outer panels will include slots near its base to permit an attachment strap, attached at its first end to the lower surface of the floor panel, to pass through the wall of the container. The attachment strap includes means to removably fasten its second end to one of the interior or exterior surfaces of the outer panels. The collapsible container includes means to removably attach its side walls together for rapid assembly.