function objct(id)
{
	return document.getElementById(id);
}
function checkAdvertisement(obj)
{ 
	var item = obj.id.split("_");
	switch(item[1])
	{
	case "premium":
		var cb = objct(item[0]+"_featured");
		if(obj.checked && cb.checked)
			cb.checked = false;
		if(obj.checked)
		{
			objct(item[0]+"_logo_container").className = "text"; 
			for(var i=1;i<=5;i++)
				objct(item[0]+"_ads_"+i+"_container").className = "hidden"; 
		}
		else
		{
			objct(item[0]+"_logo_container").className = "hidden"; 
			for(var i=1;i<=5;i++)
				objct(item[0]+"_ads_"+i+"_container").className = "hidden"; 
		}
		//window.open('featuredad.php?item='+item[1],'_blank');
	break;
	case"featured":
		var cb = objct(item[0]+"_premium");
		if(obj.checked && cb.checked)
			cb.checked = false;
		if(obj.checked)
		{
			objct(item[0]+"_logo_container").className = "text"; 
			for(var i=1;i<=5;i++)
				objct(item[0]+"_ads_"+i+"_container").className = "text"; 
		}
		else
		{
			objct(item[0]+"_logo_container").className = "hidden";
			for(var i=1;i<=5;i++)
				objct(item[0]+"_ads_"+i+"_container").className = "hidden"; 
		}
		//window.open('featuredad.php?item='+item[1],'_blank');
	break;
	}
	
}