function SubscribeUser()
{

	var strUserEmail = trim(document.getElementById("userEmailAddress").value);
	
	if (! isValidEmail(strUserEmail))
	{
		alert("Please enter a valid email address.");
		document.getElementById("userEmailAddress").focus();
	}
	else
	{
	    
		SaveUser(strUserEmail);
		document.getElementById("userEmailAddress").value = "";
		
	}
}
var AnsReqApp;
var AnsReq1App;
function SaveUser(strUserEmail)
{
    
	var strLink = "/topics/Register_Email.asp?cu_no=1&email=" + strUserEmail;
    AnsReqApp = createRequestObject();
    AnsReqApp.open('get', strLink);
    AnsReqApp.onreadystatechange = FillResultArea;
    AnsReqApp.send(null);
}

function FillResultArea()
{
      if(AnsReqApp.readyState == 4)
      { 
        var theSTR = new String();
        theSTR = AnsReqApp.responseText ;             
        //alert("App links string :"+theSTR);
        document.getElementById("TDNewsLetter").innerHTML = theSTR;
			  
      }
      else
      {

      }

}
function createRequestObject() {

    var ro;
    var browser = navigator.appName;
    if(browser == "Microsoft Internet Explorer"){
        ro = new ActiveXObject("Microsoft.XMLHTTP");
    }else{
        ro = new XMLHttpRequest();
    }
    return ro;
}