var dirX = 1;
var dirY = 1;
function move()
{	var BODY = /CSS1Compat/.test(document.compatMode)?document.documentElement:document.body;	
    //alert(document.documentElement.clientWidth);
	var div = document.getElementById('floatAdv');
	div.style.display = "block";
	var x = parseFloat(div.style.left);
	var y = parseFloat(div.style.top);
	
	if(x+div.offsetWidth>=BODY.clientWidth)
	{
		dirX = -1;
	}
	if(x==0)
	{
		dirX = 1;
	}
	if(y+div.offsetHeight>=BODY.clientHeight)
	{
		dirY = -1;
	}
	if(y==0)
	{
		dirY = 1;
	}
	//alert((y + dirY)+"px");
	div.style.top = (y + dirY)+"px";
	div.style.left =( x + dirX)+"px";	
	
		
	setTimeout('move()',30);
}

function flashadv(u,p,w,h)
{
    setTimeout('qz_adv()',3000);
	
}

function qz_adv(){	


    u = "zx.html";
    p = "images/ad_b.jpg";
    w = 800;
    h = 356;			
    var adv = document.getElementById('qz_adv');
    var body = /CSS1Compat/.test(document.compatMode)?document.documentElement:document.body;				
	if(!adv){
		adv = document.createElement('div');				
		var img = document.createElement('img');
		var a = document.createElement('a');
		a.href=u;	
		a.target="_blank";	
		img.src = p;	
		img.width = w;
		img.height = h;	
		a.appendChild(img);
		adv.appendChild(a);
		document.body.appendChild(adv);	
		
								
	}	
	var ch = ((body.clientHeight-h)+document.documentElement.scrollTop+150)/2,cw = (body.clientWidth-w)/2;	
	img.style.border='0';
	adv.style.cssText="position:absolute;left:"+cw+"px;top:"+ch+"px;";		
	var t = 100;		
	var  timer = setInterval(function(){
	if(t<=30){
		clearInterval(timer);
		document.body.removeChild(adv);		
		move();
		
		
			}
	adv.style.cssText="position:absolute;filter:alpha(opacity="+t+");opacity:"+(t/100)+";left:"+cw+"px;top:"+ch+"px";
	t --;
	},10);
	
}

var picTop = 0;
var picTopCLeft = 0;
var advTop = 0;
var advTopCRight = 0;

function init()
{    
    document.getElementById("leftDiv").style.top=appendPX(picTop+document.documentElement.scrollTop+150); 
	document.getElementById("rightDiv").style.top=appendPX(advTop+document.documentElement.scrollTop+150);	 
	document.getElementById("leftCloseDiv").style.top=appendPX(picTopCLeft+document.documentElement.scrollTop+135);
	document.getElementById("rightCloseDiv").style.top=appendPX(advTopCRight+document.documentElement.scrollTop+135);
	
    document.getElementById("leftDiv").style.left=appendPX((document.documentElement.clientWidth-900)/2-50);
   document.getElementById("leftCloseDiv").style.left=appendPX((document.documentElement.clientWidth-900)/2-50);
   document.getElementById("rightDiv").style.left=appendPX((document.documentElement.clientWidth-900)/2+900);
   document.getElementById("rightCloseDiv").style.left=appendPX((document.documentElement.clientWidth-900)/2+900);

   
   picTop=80;
   advTop=80;
   
   picTopCLeft=66;
   advTopCRight=66;
   
   scrolladv( );
   
    document.getElementById("leftDiv").style.display="block";
   document.getElementById("leftCloseDiv").style.display="block";
   document.getElementById("rightDiv").style.display="block";
   document.getElementById("rightCloseDiv").style.display="block";
  
}
   
function scrolladv( )
{    
    document.getElementById("leftDiv").style.top=appendPX(picTop+document.documentElement.scrollTop); 
	document.getElementById("rightDiv").style.top=appendPX(advTop+document.documentElement.scrollTop);
	 
	document.getElementById("leftCloseDiv").style.top=appendPX(picTopCLeft+document.documentElement.scrollTop);
	document.getElementById("rightCloseDiv").style.top=appendPX(advTopCRight+document.documentElement.scrollTop);
}
function closeAdv(){
	document.getElementById("leftDiv").style.display="none";
	document.getElementById("leftCloseDiv").style.display="none";
	
	document.getElementById("rightDiv").style.display="none";
	document.getElementById("rightCloseDiv").style.display="none";
}
function appendPX(s){
	return s+"px";
}
window.onscroll=scrolladv ;  //窗口的滚动事件，当页面滚动时调用move( )函数