function Subscribe_Email(strEmail)
{  var apos=document.getElementById(strEmail).value.indexOf("@");  var dotpos=document.getElementById(strEmail).value.lastIndexOf(".");
if (document.getElementById(strEmail).value == "")
  { 
   document.getElementById("lblMsg").innerHTML = 'Please Enter Email Id.'; return false; 
  }  
else if (apos<1 || dotpos-apos<2)
  { 
   document.getElementById("lblMsg").innerHTML = 'Please Enter Valid Email Id.'; return false; 
  }
else
  {
   document.getElementById("lblMsg").innerHTML = ''; 
  }
  document.getElementById("statusMsg").innerHTML = "Please Wait..";
  showHint('Subscribe-NewsLetter.aspx?txtEmail='+document.getElementById(strEmail).value,strEmail);
}

var xmlHttp; 
function showHint(strUrl,strEmail)
{
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
{alert ("Browser does not support HTTP Request");
return
} 
xmlHttp.onreadystatechange = stateChanged;
xmlHttp.open("GET",strUrl,true);xmlHttp.send(null);
document.getElementById(strEmail).value='';
} 

function stateChanged()
{ 
if (xmlHttp.readyState==4 )
{ 
if (xmlHttp.status == 200)
{
document.getElementById("lblMsg").innerHTML=xmlHttp.responseText ;
document.getElementById("statusMsg").style.visibility = "hidden";
document.getElementById("statusMsg").style.display = "none";
}
} 
}
function GetXmlHttpObject()
{ var objXMLHttp=null;if (window.XMLHttpRequest){objXMLHttp=new XMLHttpRequest()}else if (window.ActiveXObject){objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP");}return objXMLHttp;
}