function enlarge(itemid){  
  var w = 1024, h = 768;
  if (document.all || document.layers){
	  w = screen.availWidth-15;
	  h = screen.availHeight-36;
  }
  var str = "../../dynamo/tac/client/zoompathpic.jsp?path=../../../images/lainvitation2010/enlarge/"+itemid+".jpg";
  var picWindow = window.open(str, "newwin", "height=" + h + ",width="+ w +",top=0,left=0,scrollbars=no,menubar=no,toolbar=no,resizable=yes,status=no");
}