onload=function(){
if(!document.getElementsByTagName) return;
l=document.getElementsByTagName("a");
for(i=0;i<l.length;i++){
if(l[i].className.indexOf("linkesterno")!=-1){
		l[i].title="link esterno, si apre in una nuova finestra";
		l[i].onclick=function(){window.open(this.href);return(false)};
		}
	}
	}