adTime=10;  // seconds ad reminder is shown
chanceAd=1; // ad will be shown 1 in X times (put 1 for everytime)
content_width = 766;

var ns=(document.layers);
var ie=(document.all);
var w3=(document.getElementById && !ie);
var calunit=ns? "" : "px"
adCount=0;
function initAd(){
	if(!ns && !ie && !w3) return;
	if(ie)		adDiv=eval('document.all.sponsorAdDiv.style');
	else if(ns)	adDiv=eval('document.layers["sponsorAdDiv"]');
	else if(w3)	adDiv=eval('document.getElementById("sponsorAdDiv").style');
	
	if (ie||w3)
        adDiv.visibility="visible";
    else
        adDiv.visibility ="show";
	
	showAd();
}

function showAd(){
	//if(adCount<adTime*10){
		adCount+=1;
		if (ie){
			documentWidth  = truebody().offsetWidth/2+truebody().scrollLeft-20;
			documentHeight = truebody().offsetHeight/2+truebody().scrollTop-20;
		}	
		else if (ns){
			documentWidth=window.innerWidth/2+window.pageXOffset-20;
			documentHeight=window.innerHeight/2+window.pageYOffset-20;
		} 
		else if (w3){
			documentWidth=self.innerWidth/2+window.pageXOffset-40;
			documentHeight=self.innerHeight/2+window.pageYOffset-20;
		} 
		
		//-------------------------------------------------------
		//Edit by NHoang
		if (!w3)
			documentWidth = document.getElementById("content_tb").offsetLeft + content_width + 15;
		else {
			//alert(document.getElementById("content_tb").innerLeft);
			documentWidth = window.pageXOffset + 220 + content_width + 15;
		}
		//------------------------------------------------
		
		adDiv.left=documentWidth+calunit;
		adDiv.top =documentHeight-250+calunit;
		
		setTimeout("showAd()",100);
	//}else closeAd();
}
function closeAd(){
if (ie||w3)
adDiv.display="none";
else
adDiv.visibility ="hide";
}

function truebody(){
	return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}


initAd();