function menuFix() { 
var sfEls = document.getElementById("nav").getElementsByTagName("li"); 
for (var i=0; i<sfEls.length; i++) { 
sfEls[i].onmouseover=function() { 
this.className+=(this.className.length>0? " ": "") + "sfhover"; 
} 
sfEls[i].onMouseDown=function() { 
this.className+=(this.className.length>0? " ": "") + "sfhover"; 
} 
sfEls[i].onMouseUp=function() { 
this.className+=(this.className.length>0? " ": "") + "sfhover"; 
} 
sfEls[i].onmouseout=function() { 
this.className=this.className.replace(new RegExp("( ?|^)sfhover\\b"), 
""); 
} 
} 
}
function getid(id) {
	return document.getElementById(id);
}




var _headOfPage = 0;
function MainBtn(idx, name, link){
	this.idx = idx;
	this.name = name;
	this.link = link; 
	this.subArr = new Array();
	this.addBtn = function(btn){
		this.subArr.push(btn);
	}
}
function ChildBtn(name, link){
	this.name = name;
	this.link = link;
}
function printMainMenu(num){
	try{
		var div = document.getElementById("mainMenuDiv");
		var str = "";
		var orderArr = new Array(mainArr.length);
		for(var i=0; i<mainArr.length; i++){
			var idx = mainArr[i].idx;
			orderArr[idx] = mainArr[i];
		}
		for(var i=0; i<orderArr.length; i++){
			var name = orderArr[i].name;
			var link = orderArr[i].link;
			if(i == _headOfPage){
				str += '<a href="'+ link +'" onMouseOver="printChildMenu('+ i +')" class="curr">'+ name +'</a>';
			}else{
				str += '<a href="'+ link +'" onMouseOver="printChildMenu('+ i +')" >'+ name +'</a>';
			}
		}
		div.innerHTML = str;
	}catch(e){};
	try{
		printChildMenu(num);
	}catch(e){};
}
function printChildMenu(num){
	try{
		var div = document.getElementById("childMenuDiv");
		var str = "";
		for(var i=0; i<mainArr.length; i++){
			if(mainArr[i].idx == num){
				var cArr = mainArr[i].subArr;
				for(var j=0; j<cArr.length; j++){
					var name = cArr[j].name;
					var link = cArr[j].link;
					str += '<li><a href="'+ link +'">'+ name +'</a></li>';
				}
				break;	
			}
		}
		div.innerHTML = str;
	}catch(e){}
}
_headOfPage = 0;
var mainArr = new Array();
var mb0 = new MainBtn(0,"首 页","/zhongxiao/index.html");
var mb1 = new MainBtn(1,"企业介绍","/zhongxiao/qiyejieshao.html");
var mb2 = new MainBtn(2,"产品展示","/zhongxiao/chanpin.html");
var mb3 = new MainBtn(3,"投资实例","/zhongxiao/touzianlie.html");
var mb4 = new MainBtn(4,"技术支持","/zhongxiao/chanpinjiagou.html");
var mb5 = new MainBtn(5,"联系我们","/zhongxiao/lianxi.html");
mainArr.push(mb0);
var cb1_0 = new ChildBtn("企业介绍","/zhongxiao/qiyejieshao.html");

var cb1_1 = new ChildBtn("技术实力","/zhongxiao/jishushili.html");

var cb1_2 = new ChildBtn("企业资质","/zhongxiao/qiyezizhi.html");
var cb1_3 = new ChildBtn("最新动态","/zhongxiao/news.html");
mb1.addBtn(cb1_0);
mb1.addBtn(cb1_1);
mb1.addBtn(cb1_2);
mb1.addBtn(cb1_3);
mainArr.push(mb1);
var cb2_0 = new ChildBtn("唱吧","/zhongxiao/chanpin_a.html");
var cb2_1 = new ChildBtn("唱吧精灵","/zhongxiao/chanpin_b.html");
mb2.addBtn(cb2_0);
mb2.addBtn(cb2_1);
mainArr.push(mb2);
var cb3_0 = new ChildBtn("案例介绍","/zhongxiao/touzianli.html");
var cb3_1 = new ChildBtn("活动照片","/zhongxiao/huodongzhaopian.html");
var cb3_2 = new ChildBtn("投资回报","/zhongxiao/touzihuibao.html");
var cb3_3 = new ChildBtn("经营方案","/zhongxiao/jingyingfanganlibiao.html");
var cb3_4 = new ChildBtn("销售政策","/zhongxiao/xiaoshouzhengce.html");
mb3.addBtn(cb3_0);
mb3.addBtn(cb3_1);
mb3.addBtn(cb3_2);
mb3.addBtn(cb3_3);
mb3.addBtn(cb3_4);
mainArr.push(mb3);
var cb4_0 = new ChildBtn("架构示意图","/zhongxiao/chanpinjiagou.html");
var cb4_1 = new ChildBtn("产品说明","/zhongxiao/chanpinshuoming.html");
var cb4_2 = new ChildBtn("mp3\mp4转换","/zhongxiao/chanpinzhuanhuan.html");
var cb4_3 = new ChildBtn("常见问题","/zhongxiao/question.html");
mb4.addBtn(cb4_0);
mb4.addBtn(cb4_1);
mb4.addBtn(cb4_2);
mb4.addBtn(cb4_3);
mainArr.push(mb4);
mainArr.push(mb5);

function showinfo() {
		ei.style.display = "";
		ei.innerHTML = '<div>手机：13312119311</div><div>免费咨询电话：8008180909</div>';
		ei.style.top  = document.body.scrollTop + event.clientY + 10 + "px";
		ei.style.left = document.body.scrollLeft + event.clientX + 10 + "px";
}
function showout() {
		ei.innerHTML = "";
		ei.style.display = "none";
}