// JavaScript Document
$(document).ready(function(){  
   $("#news_nav ul li").mouseover(function(){
		$(".up_nav").hide();
		$("#up_" + this.id).show();		   
									   })
   
   $("#news_nav ul li").mousemove(function(){	 
				$("#news_nav ul li").css("background-image","url(images/a2.jpg)");
				$("#news_nav ul li").css("color","#000");
				$("#news_nav ul li").css("font-weight","normal");
				$(this).css("background-image","url(images/a1.jpg)");
				$(this).css("color","#fff");
				$(this).css("font-weight","bold");
								 
								})
    $("#news_nav ul li a").mousemove(function(){	 
				$("#news_nav ul li a").css("color","#000");
				$(this).css("color","#fff");
								  
								})
});