function dom(id){return document.getElementById(id);}
var cur_index=1;
var num=4; 
var settime;
function change_Menu(){
	
	for(var i=1;i<=num;i++){
		if(cur_index==i){
			dom("con"+i).style.display ="block";
			dom("m"+i).className = "on"+i;
		}else{
			dom("con"+i).style.display = "none";
			dom("m"+i).className ="out"+i;
		}
	}
}

function conAction(){
	if(cur_index<4){
	   cur_index++
	  }
	else{
	    cur_index=1
	  }
	change_Menu();
}

function startAction(){
	stopAction();
	settime=setInterval(conAction,7000)
}

function stopAction(){
	clearInterval(settime);
}

function clickAction(num){
	stopAction();
	cur_index = num;
	change_Menu();
}
function windowLocation(){
	  var weishi=window.location.search.match(/src=tab_two/i);
	  var shadu=window.location.search.match(/src=tab_three/i);
	  var liulunqi=window.location.search.match(/src=tab_four/i);
	  var wangdun=window.location.search.match(/src=tab_five/i);
	  var jijiuxiang=window.location.search.match(/src=tab_six/i);
	  var mipan=window.location.search.match(/src=tab_seven/i);
	  var yinsi=window.location.search.match(/src=tab_eight/i);
	  var shouji=window.location.search.match(/src=tab_nine/i);
	  var baoxianxiang=window.location.search.match(/src=tab_ten/i);
	  if(weishi){	
		  dom("con1").style.display ="none";
		  dom("con2").style.display ="block";
		  dom("m1").className = "out1";
		  dom("m2").className = "on2";
		  cur_index=2;
	  }else if(shadu){
		  dom("con1").style.display ="none";
		  dom("con3").style.display ="block";
		  dom("m1").className = "out1";
		  dom("m3").className = "on3";
		  cur_index=3;
	  }else if(liulunqi||wangdun||jijiuxiang||mipan||yinsi||shouji||baoxianxiang)
	  {
		  dom("con1").style.display ="none";
		  dom("con4").style.display ="block";
		  dom("m1").className = "out1";
		  dom("m4").className = "on4";
		  cur_index=4;
	  }else{}
	  if(wangdun){dom("txt1").style.display ="block"; dom("addLink").href="";}
	  else if(jijiuxiang){dom("txt2").style.display ="block"; dom("addLink").href="";}
	  else if(mipan){dom("txt3").style.display ="block"; dom("addLink").href="";}
	  else if(yinsi){dom("txt4").style.display ="block"; dom("addLink").href="";}
	  else if(shouji){dom("txt5").style.display ="block"; dom("addLink").href="";}
	  else if(baoxianxiang){dom("txt6").style.display ="block"; dom("addLink").href="";}
	  else{dom("txt").style.display ="block"; dom("addLink").href="";}
	}
window.onload=function(){
	windowLocation();
	startAction();
	//alert(213);
	}

function init(idS,getId){
	var liS=dom(idS).getElementsByTagName("li");
	var ulS=dom(idS).getElementsByTagName("ul");
	var j=ulS.length;
	var arr = new Array();
	if(j>0){
		for(var i=0;i<j;i++)
		{
			if(ulS[i].className=="list")
			{
				arr.push(ulS[i]);
			}
		}
	}
	for(var i=0; i<arr.length; i++){
		arr[i].setAttribute("id","cont_"+getId+i);
		liS[i].setAttribute("id",getId+i);
		liS[i].onmouseover=function (){			
			for(var i=0; i<arr.length; i++){
				dom("cont_"+getId+i).style.display="none";
				dom(getId+i).className="";
			}
			dom("cont_"+this.id).style.display="block";
			dom(this.id).className="ot";
		}
	}
}
init("demo","tab");	
init("demo1","tab1");