<!--
// browser test:
bName = navigator.appName;
bVer = parseInt (navigator.appVersion);
if (bName == "Netscape" && bVer >= 3) version = "n3";
else if (bName == "Netscape" && bVer == 2) version = "n2";
else if (bName == "Microsoft Internet Explorer" && bVer >= 3) version = "n3";
else version = "n2";

// end of browser test
// preload universal ../:
// If it is Netscape 3 browser

if (version== "n3")
{
	b1off = new Image(); b1off.src = "http://web.cfa.arizona.edu/riddle/images/button_about.gif";
	b1on = new Image(); b1on.src = "http://web.cfa.arizona.edu/riddle/images/button_aboutON.gif";
	b2off = new Image(); b2off.src = "http://web.cfa.arizona.edu/riddle/images/button_collection.gif";
	b2on = new Image(); b2on.src = "http://web.cfa.arizona.edu/riddle/images/button_collectionON.gif";
	b3off = new Image(); b3off.src = "http://web.cfa.arizona.edu/riddle/images/button_performance.gif";
	b3on = new Image(); b3on.src = "http://web.cfa.arizona.edu/riddle/images/button_performanceON.gif";
	b4off = new Image(); b4off.src = "http://web.cfa.arizona.edu/riddle/images/about_home.gif";
	b4on = new Image(); b4on.src = "http://web.cfa.arizona.edu/riddle/images/about_homeON.gif";
	b5off = new Image(); b5off.src = "http://web.cfa.arizona.edu/riddle/images/about_collectionbutton.gif";
	b5on = new Image(); b5on.src = "http://web.cfa.arizona.edu/riddle/images/about_collectionbuttonON.gif";
	b6off = new Image(); b6off.src = "http://web.cfa.arizona.edu/riddle/images/about_unforgettable.gif";
	b6on = new Image(); b6on.src = "http://web.cfa.arizona.edu/riddle/images/about_unforgettableON.gif";
	b7off = new Image(); b7off.src = "http://web.cfa.arizona.edu/riddle/images/coll_home.gif";
	b7on = new Image(); b7on.src = "http://web.cfa.arizona.edu/riddle/images/coll_homeON.gif";
	b8off = new Image(); b8off.src = "http://web.cfa.arizona.edu/riddle/images/coll_about.gif";
	b8on = new Image(); b8on.src = "http://web.cfa.arizona.edu/riddle/images/coll_aboutON.gif";
	b9off = new Image(); b9off.src = "http://web.cfa.arizona.edu/riddle/images/perf_home.gif";
	b9on = new Image(); b9on.src = "http://web.cfa.arizona.edu/riddle/images/perf_homeON.gif";
	b10off = new Image(); b10off.src = "http://web.cfa.arizona.edu/riddle/images/perf_about.gif";
	b10on = new Image(); b10on.src = "http://web.cfa.arizona.edu/riddle/images/perf_aboutON.gif";
	b11off = new Image(); b11off.src = "http://web.cfa.arizona.edu/riddle/images/perf_collbutton.gif";
	b11on = new Image(); b11on.src = "http://web.cfa.arizona.edu/riddle/images/perf_collbuttonON.gif";
	
}
function hiLite(imgDocID,imgObjName) {
   if (version == "n3") {
       document.images[imgDocID].src = imgObjName;
     }
   }
function hiLiteOff(imgDocID,imgObjName) {
   if (version == "n3") {
       document.images[imgDocID].src = imgObjName;
     }
   }
//-->