function init(){
	var a= document.getElementsByTagName('a');
	for (var i=0;i<a.length;i++){
		if(a[i].className.indexOf("popup")!=-1){ a[i].onclick=popup;
		}
	}
}

function popup(){
	
	var href=this.getAttribute('href');
 	if(document.all){href=this.attributes['href'].value;}
 	if (this.className.indexOf("nt")!=-1){
 		var finestra= window.open(href,'finestra','height=400,width=1024, scrollbars=1,resizable=1,status=no');
 		return false;
 	}
	var finestra= window.open(href,'finestra','height=600,width=650, scrollbars=1,resizable=1,status=no');
	return false;

}

window.onload=init;