<!--
 var img_number_global = 0;
 var imlocation = "../images/top/";
 var image_number = 0;
 function ImageArray (n) {
   this.length = n;
   for (var i =1; i <= n; i++) {
     this[i] = ' '
   }
 }
 image = new ImageArray(7)
 image[0] = 'TopperCCMap.jpg'
 image[1] = 'TopperClass.jpg'
 image[2] = 'TopperLand.jpg'
 image[3] = 'TopperMF.jpg'
 image[4] = 'TopperNBH.jpg'
 image[5] = 'TopperVasc.jpg'
 image[6] = 'TopperStudy.jpg'
 function randomimage() {
	var x=Math.random()*image.length;
	image_number =Math.floor(x);
	img_number_global = image_number; 
 	return(image[image_number])
 }
 document.write("<img src='" + imlocation + randomimage()+ "'>");
//-->

