var xmlHttp;

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;
}

//-------- email check subscriber---------------
function emailsubscriber(str)
{
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
} 
var url="signup-validate.php"
url=url+"?nemail="+str
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=emailchksub
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
} 

function emailchksub() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
{ 
 if(xmlHttp.responseText!="")
   {
     document.getElementById("nemailsub").innerHTML=xmlHttp.responseText;
	 document.frmnews.nemail.value="";
	 document.frmnews.nemail.focus();
   }
   else
   {
	 document.getElementById("nemailsub").innerHTML=xmlHttp.responseText;
   }
}
}