mxWindow.prototype.activate=function(){if(mxWindow.activeWindow!=this){var a=mxUtils.getCurrentStyle(this.getElement());a=null!=a?a.zIndex:3;if(mxWindow.activeWindow){var b=mxWindow.activeWindow.getElement();null!=b&&null!=b.style&&(b.style.zIndex=a)}b=mxWindow.activeWindow;this.getElement().style.zIndex=parseInt(a)+1;mxWindow.activeWindow=this;this.fireEvent(new mxEventObject(mxEvent.ACTIVATE,"previousWindow",b))}};mxWindow.prototype.getElement=function(){return this.div};