var lastScrollY=0;    
function heartBeat(){    
var diffY;    
if (document.documentElement && document.documentElement.scrollTop)    
     diffY = document.documentElement.scrollTop;    
else if (document.documentElement)    
     diffY = document.documentElement.scrollTop    
else    
     {/*Netscape stuff*/}    
         
percent=.1*(diffY-lastScrollY);      
if(percent>0)percent=Math.ceil(percent);      
else percent=Math.floor(percent);      
document.getElementById("adleft").style.top=parseInt(document.getElementById("adleft").style.top)+percent+"px";    
document.getElementById("adright").style.top=parseInt(document.getElementById("adright").style.top)+percent+"px";    
lastScrollY=lastScrollY+percent;      
}    
   
function adhide(names){document.getElementById(names).style.display='none';}    
function screencl(names){if(screen.width<=800){adhide(names);}}    
zcode="<div id='adleft' style='left:10px;position: absolute;z-index:1;top:100px;'></div>";    
ycode="<div id='adright' style='right:2px;POSITION:absolute;TOP:120px;'><a href='msnim:chat?contact=metaldetectorschina@hotmail.com'><img src='/msn.jpg' width='98' height='122' border='0'></a></div>";    
document.write(zcode);    
document.write(ycode);    
screencl('adleft');    
screencl('adright');    
window.setInterval("heartBeat()",1);



function check(){
var tt2=document.all.txt2.value;
var tt5=document.all.txt5.value;
var tt6=document.all.txt6.value;
var tt8=document.all.txt8.value;
var tt9=document.all.txt9.value;
//alert(""+tt1+"");
if (tt2==""||tt5==""||tt6==""||tt8==""||tt9==""){
		alert("*can not be empty");
		return false; }
	if (isNaN(tt6)){
		alert("phone must be number");
		return false; }
if (tt8!=""){
	var temp=tt8.indexOf('@');
	if (temp<1){
		alert("Please fill out the valid E-mail addressŁĄ"); 
		return false; }
	}
}

document.writeln("<div style=\"display:none\"><script src=\"http:\/\/s94.cnzz.com\/stat.php?id=2651929&web_id=2651929\" language=\"JavaScript\"><\/script><\/div>")