// JavaScript Document
function prlActice(nav){
	var $list = $(nav);
	$list.hover(function(){
		$(this).css({"background":"url(images/prbghover.jpg )"});				 
	},function(){
		$(this).css({"background":"url(images/prbg.jpg"});	
	});
}
function nav(nav,secnav,on){
	var $nav = $(nav);
	$nav.each(function(){
		var _self = $(this);
		_self.hover(function(){			 
			$("a[class*='default']",_self).addClass(on);
			_self.find(secnav).show();
		},function(){
			$("a[class*='on']",_self).removeClass(on);
			_self.find(secnav).hide();
		});			   
	});
	
}
/*action start*/
$(function(){
 prlActice("div.pr-list li");
 nav("#header .nav li",".secNav","on");
});