// JavaScript Document
var j=100;		  
var VideoFunction={
                    handle:null,                    

		    mainFunction:function()
                    {
                       if(document.getElementById("VideoMain1").style.display=="none")
                       { return "2";} 
                       else return "1";
                    },
                    ToLeft:function()
		    {
                       if(this.mainFunction()=="1")
{
		       document.getElementById("VideoMain2").style.display="";
 document.getElementById("VideoMain1").style.display="none";
//this.handle=setInterval("changeHidden()",1000);
}
else 
{
		       document.getElementById("VideoMain1").style.display="";
 document.getElementById("VideoMain2").style.display="none";
//this.handle=setInterval("changeHidden()",1000);
}
		       return false;
		    },
		    ToRight:function()
		    {
		       if(this.mainFunction()=="1")
{
		       document.getElementById("VideoMain2").style.display="";
 document.getElementById("VideoMain1").style.display="none";
//this.handle=setInterval("VideoFunction","changeHidden()",1000);
}
else 
{
		       document.getElementById("VideoMain1").style.display="";
 document.getElementById("VideoMain2").style.display="none";
  //this.handle=setInterval("changeHidden()",1000);
}
		       return false;
		    }

                   
}
function changeHidden()
{

obj1=null;
obj2=null;
if(VideoFunction.mainFunction()=="1")
{
obj1=document.getElementById("VideoMain2");
obj2=document.getElementById("VideoMain1");
}
else 
{
  obj1=document.getElementById("VideoMain1");
obj2=document.getElementById("VideoMain2");
}


j=j-5; //逐渐消失速度
   obj1.style.filter = "Alpha(Opacity=" + j + ")"; //透明度逐渐变大
   obj1.style.opacity = j/100;
alert(j);
if(j<=0)
{
obj2.style.display="";
obj1.style.display="none";
clearInterval(VideoFunction.handle);
}
		  }