browserName = navigator.appName;   // detect browser 
         browserVer = parseInt(navigator.appVersion);
             if (browserName == "Netscape" && browserVer >= 3) browserVer = "1";
		 else if (browserName == "Microsoft Internet Explorer" && browserVer == 4) browserVer = "1";
             else browserVer = "2";

//preload images:
if (browserVer == 1) {
	a1 = new Image(36,13);
	a1.src = "images/buttons_down/1.jpg";
	a2 = new Image(36,13);
	a2.src = "images/buttons_down/1a.jpg";
	b1 = new Image(59,13);
	b1.src = "images/buttons_down/2.jpg";
	b2 = new Image(59,13);
	b2.src = "images/buttons_down/2a.jpg";
	c1 = new Image(52,31);
	c1.src = "images/buttons_down/3.jpg";
	c2 = new Image(52,31);
	c2.src = "images/buttons_down/3a.jpg";
	d1 = new Image(57,13);
	d1.src = "images/buttons_down/4.jpg";
	d2 = new Image(57,13);
	d2.src = "images/buttons_down/4a.jpg";
	e1 = new Image(56,13);
	e1.src = "images/buttons_down/5.jpg";
	e2 = new Image(56,13);
	e2.src = "images/buttons_down/5a.jpg";
	
	
	
	da1 = new Image(52,15);
	da1.src = "images/buttons_top/t1.jpg";
	da2 = new Image(52,15);
	da2.src = "images/buttons_top/t1a.jpg";
	db1 = new Image(84,15);
	db1.src = "images/buttons_top/t2.jpg";
	db2 = new Image(84,15);
	db2.src = "images/buttons_top/t2a.jpg";
	dc1 = new Image(77,15);
	dc1.src = "images/buttons_top/t3.jpg";
	dc2 = new Image(77,15);
	dc2.src = "images/buttons_top/t3a.jpg";
	dd1 = new Image(93,15);
	dd1.src = "images/buttons_top/t4.jpg";
	dd2 = new Image(93,15);
	dd2.src = "images/buttons_top/t4a.jpg";
	de1 = new Image(90,15);
	de1.src = "images/buttons_top/t5.jpg";
	de2 = new Image(90,15);
	de2.src = "images/buttons_top/t5a.jpg";									
}

function hiLite(imgDocID, imgObjName) {
if (browserVer == 1) {
	document.images[imgDocID].src = eval(imgObjName + ".src");
}}