// JavaScript Document 文本设置
var inter;
		function viewItem(){clearInterval(inter);inter=setInterval(function(){
			var width=System.style.getStyle($('a_menu'),'width');
			width=parseInt(width);
			var step=(548-width)/5|5;
			width+=step;
			System.style.setStyle($('a_menu'),'width',width+'px');
			if(width>=548)clearInterval(inter);
		},20);}
		function hiddenItem(){clearInterval(inter);inter=setInterval(function(){
			var width=System.style.getStyle($('a_menu'),'width');
			width=parseInt(width);
			var step=(width-1)/5|5;
			width-=step;
			if(width<=1){clearInterval(inter);return;}
			System.style.setStyle($('a_menu'),'width',width+'px');
		},20);}
		System.Events.addEvent($('a_arrow'),viewItem,'mouseover',false);
		System.Events.addEvent($('a_arrow'),hiddenItem,'mouseout',false);
		System.Events.addEvent($('a_menu'),viewItem,'mouseover',false);
		System.Events.addEvent($('a_menu'),hiddenItem,'mouseout',false);
		active(['u_home','u_reg','u_login','u_loginout']);
		checkLogin();
	    checkRegInfo();
		var leftOL=(document.body.clientWidth/2-962/2);
		
		leftOL=leftOL<0?0:leftOL;
		leftOL=Math.floor(leftOL);
	    System.style.setStyle($('a_bg'),'left',leftOL+'px');
		System.Events.addEvent(window,function(){
													  var left=(document.body.clientWidth/2-962/2);
													  left=left<0?0:left;
													  left=Math.floor(left);
													  System.style.setStyle($('a_bg'),'left',left);
													  },'resize',false);