// This script tracks where a person is coming from (the url), 
// so we can track our online sales 

var refer = getCookie("AIT", document.referrer);
if(refer == ""){
refer = "NULL";
}
function getCookie (name, refer) 
{
var dcookie = document.cookie; 
var cname = name + "=";
var clen = dcookie.length;
var cbegin = 0;
while (cbegin < clen) 
{
var vbegin = cbegin + cname.length;
if (dcookie.substring(cbegin, vbegin) == cname) 
{ 
var vend = dcookie.indexOf (";", vbegin);
if (vend == -1) 
vend = clen;
return unescape(dcookie.substring(vbegin, vend));
}
cbegin = dcookie.indexOf(" ", cbegin) + 1;
if (cbegin == 0) 
break;
} // while
setCookie ("AIT");
return unescape(refer);
} 
function setCookie (name) 
{
var value = document.referrer;
if(value == ""){
value = "NULL";
}
expires = new Date();
expires.setHours(23);
document.cookie = name + "=" + escape (value) + "; expires=" + expires.toGMTString() + "; path=/"; 
}


// Opens a new window and opens the order.aitcom.net web page
function referWrite()
{
   window.open('http://aitcom.net/refer.php?refURL='+refer);
}