var isIe4=false, isDom=false, isMac=false, isWin=false, isNs=false, isNs4=false, isFlash=-1, isLoaded=false;
var isIe=false, isIe50=false, preLoad=new Array(), imgString=new Array(), imgStringActive=new Array();

function init()
{
	if (isDom)
	{
		isLoaded=true;
		imgPreload("/pre-citv/_template/img/navigation2/button_1_off_over.gif","/pre-citv/_template/img/navigation2/button_2_off_over.gif","/pre-citv/_template/img/navigation2/button_3_off_over.gif","/pre-citv/_template/img/navigation2/button_4_off_over.gif","/pre-citv/_template/img/navigation2/button_5_off_over.gif","/pre-citv/_template/img/navigation2/button_6_off_over.gif","/pre-citv/_template/img/navigation2/button_1_on_over.gif","/pre-citv/_template/img/navigation2/button_2_on_over.gif","/pre-citv/_template/img/navigation2/button_3_on_over.gif","/pre-citv/_template/img/navigation2/button_4_on_over.gif","/pre-citv/_template/img/navigation2/button_5_on_over.gif","/pre-citv/_template/img/navigation2/button_6_on_over.gif");
	}
}

imgString=("")

function imgPreload()
{
	var imageURL = "";
	var aLength=imgPreload.arguments.length, i;
	for (i=0; i<aLength; i++)
	{
		preLoad[i]=new Image();
		preLoad[i].src=imgPreload.arguments[i];
	}
}


function imgSwap(imgID,isActive)
{
	if (isLoaded) 
	{
		if(isActive!=1)
		{
			imgString="/pre-citv/_template/img/navigation2/"+imgID+"_off_over.gif";
		}
		else
		{
			imgString="/pre-citv/_template/img/navigation2/"+imgID+"_on_over.gif";
		}
		document.getElementById(imgID).setAttribute('src',imgString);
	}
}

function restoreImg(imgID,isActive)
{
	if (isLoaded) 
	{
		if(isActive!=1)
		{
			imgString="/pre-citv/_template/img/navigation2/"+imgID+"_off.gif";
		}
		else
		{
			imgString="/pre-citv/_template/img/navigation2/"+imgID+"_on.gif";
		}
		document.getElementById(imgID).setAttribute('src',imgString);
	}
}

isMac=(navigator.platform=="MacPPC")? true:false;
isWin=(navigator.appVersion.indexOf("Win")!=-1)? true:false;
isIe=(navigator.appName=="Microsoft Internet Explorer")? true:false;
isIe4=(document.all)? true:false;
isDom=(document.getElementById)? true:false;
if ((parseInt(navigator.appVersion)==4) && (navigator.appName=="Netscape"))
{
	isNs4 = true;
	isImg = true;
}
window.onload=init;