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="";
ycode="";
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("红色 * 星号处不能为空！");
return false; }
if (isNaN(tt6)){
alert("电话必须为数字");
return false; }
if (tt8!=""){
var temp=tt8.indexOf('@');
if (temp<1){
alert("请填写有效的E-mail地址！");
return false; }
}
}
