String.prototype.trim = function() {
a = this.replace(/^\s+/, '');
return a.replace(/\s+$/, '');
};
var xmlHttpPur
function saveMailingList(uName,uEmail)
{ 
xmlHttpPur=GetXmlHttpObject()
if (xmlHttpPur==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 } 
var url="checkIsbnsale.php"
url=url+"?Name="+uName
url=url+"&Email="+uEmail
url=url+"&sid="+Math.random()
xmlHttpPur.onreadystatechange=stateChanged1 
xmlHttpPur.open("GET",url,true)
xmlHttpPur.send(null)
}

function stateChanged1() 
{ 
if (xmlHttpPur.readyState==4 || xmlHttpPur.readyState=="complete")
 { 
	if(parseInt(xmlHttpPur.responseText)==1)
	{
		alert("You are added to our mailing list");
		document.getElementById('uName').value="";
		document.getElementById('uEmail').value="";
	}
	else
	{
		alert("Sorry ! You are not added to our mailing list");
		document.getElementById('uName').value="";
		document.getElementById('uEmail').value="";
	}
 } 
}

function GetXmlHttpObject()
{
var xmlHttpPur=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttpPur=new XMLHttpRequest();
 }
catch (e)
 {
 //Internet Explorer
 try
  {
  xmlHttpPur=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttpPur=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttpPur;
}