function popunder()
{
	// Check if the DOM is supported
	if(!document.getElementById || !document.createTextNode){return;}
	// Define variables
	var pa=document.getElementById('popad');
	var ft=document.getElementById('popad_footage');
	var closeLinkTitle='Activate to close';
	var closeLinkId='popad_close';
	var closeLinkText='Chiudi X';
	var dynamicClass='dynamic';
	// check if all elements are available
	if(!pa || !ft){return;}
	// set class to indicate dynamic functionality
	pa.className=dynamicClass;
	// function to remove the ad
	function killad(e)
	{
		// if the link is the close link, don't follow it.
		if(this.id==closeLinkId)
		{	
			stoplink(e);
		}
		// if the  link has a rel external, then open it in a new window
		if(this.rel=='external')
		{
			window.open(this.href);				
			stoplink(e);
		}
		pa.parentNode.removeChild(pa);
	}
	// create new link to close the ad, and set its attributes 			
	var closelink=document.createElement('a');
	closelink.setAttribute('href','#');
	closelink.setAttribute('title',closeLinkTitle);
	closelink.setAttribute('id',closeLinkId);
	closelink.appendChild(document.createTextNode(closeLinkText));
	ft.getElementsByTagName('a')[0]?ft.insertBefore(closelink,ft.firstChild):ft.appendChild(closelink);
	// append the kill ad function
	var popadlinks=pa.getElementsByTagName('a');
	for(var i=0;i<popadlinks.length;i++)
	{
		addEvent(popadlinks[i],'click',killad)
	}
}
function addEvent(obj,type,fn)
{
	if (obj.addEventListener) 
	{
		obj.addEventListener( type, fn, false );
	} else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
	}
}
function stoplink(e)
{
	if (window.event) {
      window.event.cancelBubble = true;
      window.event.returnValue = false;
    }
    if (e && e.stopPropagation && e.preventDefault) {
      e.stopPropagation();
      e.preventDefault();
    }
}
addEvent(window,'load',popunder)