title: Sub Navigation Bar with Hover Images
body: <p>I am creating a horizontal top navigation bar with images. I have the top bar ready to go (code below) but I am unsure of how to add the second and third level of navigation. For instance, when someone hovers over Business Essentials I would like the image itself to change to it's hover state, as well as display a table below it which is my sub-navigation. Perhaps I'm going about this the wrong way, but using images is the only way I can get the exact look requested. If anyone can tell me what my next step should be or give me a reference/example code it would be GREATLY appreciated.</p>
  
  <pre><code>&lt;head&gt;
  &lt;script type="text/javascript"&gt;
  function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&amp;&amp;i&lt;a.length&amp;&amp;(x=a[i])&amp;&amp;x.oSrc;i++) x.src=x.oSrc;
  }
  function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
  var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i&lt;a.length; i++)
  if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
  }
  
  function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))&gt;0&amp;&amp;parent.frames.length) {
  d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&amp;&amp;d.all) x=d.all[n]; for (i=0;!x&amp;&amp;i&lt;d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&amp;&amp;d.layers&amp;&amp;i&lt;d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x &amp;&amp; d.getElementById) x=d.getElementById(n); return x;
  }
  
  function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i&lt;(a.length-   2);i+=3)
  if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src;  x.src=a[i+2];}
  }
  &lt;/script&gt;
  &lt;/head&gt;
  
  
  &lt;body onload="MM_preloadImages('Nav2_hover.jpg','Nav3_hover.jpg','Nav4_hover.jpg','Nav5_hover.jpg','Nav6_hover.jpg','Nav7_hover.jpg','Nav8_hover.jpg','Nav9_hover.jpg')"&gt;
  
  &lt;table width="950" border="0" cellspacing="0" cellpadding="0"&gt;
  &lt;tr&gt;
  &lt;td width="194"&gt;&lt;img src="Nav1.jpg" width="194" height="67" alt="Home" longdesc="/home.aspx" /&gt;&lt;/td&gt;
  &lt;td width="70"&gt;&lt;a href="/bus_essentials.aspx" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('BusEssentials','','Nav2_hover.jpg',1)"&gt;&lt;img src="Nav2.jpg" alt="Business Essentials" width="70" height="67" id="BusEssentials" /&gt;&lt;/a&gt;&lt;/td&gt;
  &lt;td width="9"&gt;&lt;img src="NavDiv.jpg" width="9" height="67" /&gt;&lt;/td&gt;
  &lt;td width="68"&gt;&lt;a href="/career_planning.aspx" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('CareerPlanning','','Nav3_hover.jpg',1)"&gt;&lt;img src="Nav3.jpg" alt="Career Planning" width="68" height="67" id="CareerPlanning" /&gt;&lt;/a&gt;&lt;/td&gt;
  &lt;td width="9"&gt;&lt;img src="NavDiv.jpg" width="9" height="67" /&gt;&lt;/td&gt;
  &lt;td width="108"&gt;&lt;a href="/communications.aspx" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Communications','','Nav4_hover.jpg',1)"&gt;&lt;img src="Nav4.jpg" alt="Communications" width="108" height="67" id="Communications" /&gt;&lt;/a&gt;&lt;/td&gt;
  &lt;td width="9"&gt;&lt;img src="NavDiv.jpg" width="9" height="67" /&gt;&lt;/td&gt;
  &lt;td width="95"&gt;&lt;a href="/ind_effectiveness.aspx" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('IndivEffectiveness','','Nav5_hover.jpg',1)"&gt;&lt;img src="Nav5.jpg" alt="Individual Effectiveness" width="95" height="67" id="IndivEffectiveness" /&gt;&lt;/a&gt;&lt;/td&gt;
  &lt;td width="9"&gt;&lt;img src="NavDiv.jpg" width="9" height="67" /&gt;&lt;/td&gt;
  &lt;td width="84"&gt;&lt;a href="/leadership.aspx" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Leadership','','Nav6_hover.jpg',1)"&gt;&lt;img src="Nav6.jpg" alt="Leadership" width="84" height="67" id="Leadership" /&gt;&lt;/a&gt;&lt;/td&gt;
  &lt;td width="10"&gt;&lt;img src="NavDiv.jpg" width="9" height="67" /&gt;&lt;/td&gt;
  &lt;td width="77"&gt;&lt;a href="/mentoring.aspx" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Mentoring','','Nav7_hover.jpg',1)"&gt;&lt;img src="Nav7.jpg" alt="Mentoring" width="77" height="67" id="Mentoring" /&gt;&lt;/a&gt;&lt;/td&gt;
  &lt;td width="182"&gt;&lt;img src="NavDiv.jpg" width="9" height="67" /&gt;&lt;/td&gt;
  &lt;td width="9"&gt;&lt;a href="/effectiveness.aspx" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Effectiveness','','Nav8_hover.jpg',1)"&gt;&lt;img src="Nav8.jpg" alt="Effectiveness" width="99" height="67" id="Effectiveness" /&gt;&lt;/a&gt;&lt;/td&gt;
  &lt;td width="182"&gt;&lt;img src="NavDiv.jpg" width="9" height="67" /&gt;&lt;/td&gt;
  &lt;td width="17"&gt;&lt;a href="/skills.aspx" onmouseout="MM_swapImgRestore()" onmouseover="MM_swapImage('Skills','','Nav9_hover.jpg',1)"&gt;&lt;img src="Nav9.jpg" alt="Skills" width="93" height="67" id="Skills" /&gt;&lt;/a&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;/table&gt;
  </code></pre>