// JavaScript Document
isIE =(document.all)?true:false;
function $(id){return document.getElementById(id);}

//获取元素的XY坐标
function getXY(e){
	 var  t=e.offsetTop;  
     var  l=e.offsetLeft;  
     while(e=e.offsetParent){
		 t+=e.offsetTop;
		 l+=e.offsetLeft;  
     }
	 return {x:l,y:t};
}

//菜单切换
function showMenu(obj){
	var objDiv = obj.getElementsByTagName('ul')[0];
	if(objDiv && objDiv.getElementsByTagName('li')[0]){
		objDiv.style.display = (objDiv.style.display=='block')?'none':'block';
		obj.className = (objDiv.style.display=='block')?'inMenu':'';
	}else{
		obj.className = (obj.className.length > 0)?'':'inMenu';
	}
}

//IE下二级菜单切换
function showMenuNext(obj){
	showMenu(obj);
	var Node = getXY(obj);
	var objDiv = obj.getElementsByTagName('ul')[0];
	var isIE = document.all && window.external;
	if(isIE){
		$('nextMenu').style.display = (objDiv.style.display=='block')?'block':'none';
		$('nextMenu').style.left = Node.x+201;
		$('nextMenu').style.top = Node.y;
		$('nextMenu').innerHTML = objDiv.innerHTML;
	}
}

//内容切换
function showDiv(num,allNum){
	var a = $('showA').getElementsByTagName('li');
	for(i=0;i<allNum;i++){
		a[i].className = (i==num)?'inM':'';
		$('dow'+i).style.display = (i==num)?'block':'none';
	}
	return false;
}

//跳转
function goUrl(url){location = url;}

//菜单状态
function MenuIn(num){
	num = (num>4)?0:num;
	$('menu_'+num).className = 'inMenu';
}

//切换样式
function changeCss(num){
	$('css').href = '/css/style_'+num+'.css';
	Cookie.set('Css',num,24);
	return false;
}

window.onload = function(){
	var num = Cookie.get('Css');
	if(num){
		changeCss(num);
	}else{
		return false;
	}
}