var xmlHttp;

function sentsignup(val)
{ 
//str=parseInt(str)+1;
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url="signup.php?email=";
url=url+val;
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}
function stateChanged(){ 
if (xmlHttp.readyState==4){ 
	var result=xmlHttp.responseText;
	if(result!=""){
		if(result=="Success"){alert("Signup Mail Sent Successfully!");}
		if(result=="Fail"){alert("Please Enter Your Email");}
		}
	}
}

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