/*****************************************
This will preload all images for the drop
downs, and also contains the rollover script
*****************************************/

//preload images
menuImg1 = new Image();
menuImg1.src = "http://www.neuroengineering.upenn.edu/boahen/img/navLearnOver.gif";
menuImg1a = new Image();
menuImg1a.src = "http://www.neuroengineering.upenn.edu/boahen/img/navLearnOff.gif";
menuImg2 = new Image();
menuImg2.src = "http://www.neuroengineering.upenn.edu/boahen/img/navAuditionOver.gif";
menuImg2a = new Image();
menuImg2a.src = "http://www.neuroengineering.upenn.edu/boahen/img/navAuditionOff.gif";
menuImg3 = new Image();
menuImg3.src = "http://www.neuroengineering.upenn.edu/boahen/img/navVisionOver.gif";
menuImg3a = new Image();
menuImg3a.src = "http://www.neuroengineering.upenn.edu/boahen/img/navVisionOff.gif";
menuImg4 = new Image();
menuImg4.src = "http://www.neuroengineering.upenn.edu/boahen/img/navAttentionOver.gif";
menuImg4a = new Image();
menuImg4a.src = "http://www.neuroengineering.upenn.edu/boahen/img/navAttentionOff.gif";
menuImg5 = new Image();
menuImg5.src = "http://www.neuroengineering.upenn.edu/boahen/img/navLabsFinkelOver.gif";
menuImg5a = new Image();
menuImg5a.src = "http://www.neuroengineering.upenn.edu/boahen/img/navLabsFinkelOff.gif";
menuImg6 = new Image();
menuImg6.src = "http://www.neuroengineering.upenn.edu/boahen/img/navLabsBoahenOver.gif";
menuImg6a = new Image();
menuImg6a.src = "http://www.neuroengineering.upenn.edu/boahen/img/navLabsBoahenOff.gif";
menuImg7 = new Image();
menuImg7.src = "http://www.neuroengineering.upenn.edu/boahen/img/navLabsBusOver.gif";
menuImg7a = new Image();
menuImg7a.src = "http://www.neuroengineering.upenn.edu/boahen/img/navLabsBusOff.gif";
menuImg8 = new Image();
menuImg8.src = "http://www.neuroengineering.upenn.edu/boahen/img/navLabsBogenOver.gif";
menuImg8a = new Image();
menuImg8a.src = "http://www.neuroengineering.upenn.edu/boahen/img/navLabsBogenOff.gif";
menuImg9 = new Image();
menuImg9.src = "http://www.neuroengineering.upenn.edu/boahen/img/navProjAvailOver.gif";
menuImg9a = new Image();
menuImg9a.src = "http://www.neuroengineering.upenn.edu/boahen/img/navProjAvailOff.gif";


//Rollovers
stuck = new Image();
function MM_swapImage() 
{
	var i,j=0,objStr,obj,swapArray=new Array,oldArray=document.MM_swapImgData;
	for (i=0; i < (MM_swapImage.arguments.length-2); i+=3) 
	{
		objStr = MM_swapImage.arguments[(navigator.appName=='Netscape')?i:i+1];
		if ((objStr.indexOf('document.layers[')==0 && document.layers==null) ||
		(objStr.indexOf('document.all[')==0 && document.all==null))
		{
			objStr = 'document'+objStr.substring(objStr.lastIndexOf('.'),objStr.length);
		}
		obj = eval(objStr);
		if (obj != null) 
		{
			swapArray[j++] = obj;
			swapArray[j++] = (oldArray==null || oldArray[j-1]!=obj)?obj.src:oldArray[j];
			obj.src = MM_swapImage.arguments[i+2];
		} 
	}
	document.MM_swapImgData = swapArray;
}