function set_over(theObject, over) {
	//var Url 	= "../images/content/over_lay";
	//var Type 	= ".gif";
  // 	object 		= document.getElementById(theObject);
	//object.src 	= Url + over + Type;
	$("#"+theObject).css({"backgroundPosition": (over=="out")?"top center":"bottom center"});
}