function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		
		online_over = newImage("../images/online-over.gif");
		search_over = newImage("images/search-over.gif");
		preloadFlag = true;
	}
}


function MM_openBrWindow(theURL,winName,features) { //v2.0
 window.open(theURL,winName,features);}
 
var layerRef="null";
var styleSwitch="null";
var NC=false;
//check browser version
function CheckBrowser()
{
  if (navigator.appName == "Netscape")
  	{layerRef="document.layers"; styleSwitch=""; NC=true;}
	else
	{layerRef="document.all"; styleSwitch=".style";}
}

function ShowLayer(layerName, vis)
//-----------------------------------
{(vis)? eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="visible"'):eval(layerRef+'["'+layerName+'"]'+styleSwitch+'.visibility="hidden"');
}