var currentheight;
var currentwidth;

window.onresize = OnOffAd;

OnOffAd()

function OnOffAd(){

	if(currentwidth != document.documentElement.clientWidth || currentheight != document.documentElement.clientHeight )
	{
		if (document.body.clientWidth>1300)
		{
		document.getElementById('web3_tower').innerHTML="<iframe style='position:fixed; background:#FFF; height:100%; top:0px; left:0px' frameborder='0' marginwidth='0' marginheight='0' scrolling='no' width='160' height='600' SRC='http://ad.xtendmedia.com/st?ad_type=iframe&ad_size=160x600&section=754767'></iframe>";
		}
		else
		if (document.body.clientWidth>1220)
		{
		document.getElementById('web3_tower').innerHTML="<iframe style='position:fixed; background:#FFF; height:100%; top:0px; left:0px' frameborder='0' marginwidth='0' marginheight='0' scrolling='no' width='125' height='600' SRC='http://ad.xtendmedia.com/st?ad_type=iframe&ad_size=120x600&section=754767'></iframe>";
		}
		else
		document.getElementById('web3_tower').innerHTML="";
	}
	
	currentheight = document.documentElement.clientHeight;
	currentwidth = document.documentElement.clientWidth;

}