function preloadImages() 
{
    var imSrcAr = new Array("/new/images/red_over.gif","blue_over.gif");
	var imAr = new Array(0);
	for(var i=0; i < imSrcAr.length; i++)
	{
	    imAr[imAr.length] = new Image();
        imAr[imAr.length-1].src = imSrcAr[i];
    }
}