var xhro=false;

function cb()
{
if(window.XMLHttpRequest)
{
xhro=new XMLHttpRequest();
return xhro;
}
else if(window.ActiveXObject)
{
xhro=new ActiveXObject("Microsoft.XMLHTTP");
return xhro;
}
return null;
}

function gd(str)
{
if(str!="0000"){

var cbf;
cbf=cb();
if(cbf==null){
alert('Your browser dose not support xmlHttpRequest!');
return 0;
}

var obj=document.getElementById('dt');
obj.innerHTML="<center><img src='/inc/L.gif' border='0' /></center>";
xhro.open("GET","gt.php?p=" + str,true);
xhro.onreadystatechange=function()
{
if(xhro.readyState==4 && xhro.status==200)
{
obj.innerHTML=xhro.responseText;
}
}
xhro.send(null);
}
}