document.onmouseover = function ( e ) {   
		if ( !e ) e = window.event;   
		var el = e.target ? e.target : e.srcElement;   
		while ( el != null && el.tagName != "A" ) el = el.parentNode;   
		if ( el == null ) return;   
		if ( e.preventDefault ) e.preventDefault();   
		else e.returnValue = true;};