function imageZoomEvent(){
  if (!document.getElementsByTagName) return false;
  if (!document.getElementById) return false;
  
  var enlarge_pic1 = document.getElementById("enlarge_pic1");
  var enlarge_pic2 = document.getElementById("enlarge_pic2");
  if(!enlarge_pic1) return false;
  if(!enlarge_pic2) return false;
  
	enlarge_pic1.onclick = function(){
		window.open(enlarge_pic1.href,'mywindow','width='+width+',height='+height+',resizable=yes,scrollbars=yes,left=0,top=0,screenX=0,screenY=0');
		return false;
	}
	enlarge_pic2.onclick = function(){
		window.open(enlarge_pic2.href,'mywindow','width='+width+',height='+height+',resizable=yes,scrollbars=yes,left=0,top=0,screenX=0,screenY=0');
		return false;
	}
}
addLoadEvent(imageZoomEvent);