var http;// = getHTTPObject();
var emailobj;

function handleHttpResponse_newletter() 
{ 
	if (http.readyState == 4) 
	{	
      	isWorking = false;
    	if (http.responseText.indexOf('invalid') == -1) 
		{
			var xmlDocument = http.responseXML;
			var varmsg = xmlDocument.getElementsByTagName('varmsg').item(0).firstChild.data;
			var result = xmlDocument.getElementsByTagName('result').item(0).firstChild.data;

			document.getElementById('shownewsmsg').style.display='';
			document.getElementById('shownewsmsg').innerHTML = varmsg;

			if(parseInt(result) > 0)
			{
				document.getElementById('vEmail').value='';
			}

			setTimeout("hideDiv('shownewsmsg')",5000)
			isWorking = false;
		}
  	}
}
function setNewsLetter(objEmail)
{
	emailobj = objEmail.value;

	var url = "setNewsletter.php?emailid=";
	var isWorking = false;
	if (!isWorking)
	{
		catID = emailobj;
		isWorking = true;
		url += catID;
		//alert(url);
		if (window.XMLHttpRequest)
	  	{
	  		http=new XMLHttpRequest()
	  		http.open("GET",url, true);
		  	http.onreadystatechange=handleHttpResponse_newletter
		  	http.send(null)
	  	}
		// code for IE
		else if (window.ActiveXObject)
	  	{
	  		http=new ActiveXObject("Microsoft.XMLHTTP")
	    	if (http)
	    	{
	    		http.open("GET",url, true);
	    		http.onreadystatechange=handleHttpResponse_newletter
	    		http.send()
	    	}
	  	}
  	}
}

function hideDiv(id)
{
	document.getElementById(id).innerHTML='';
	document.getElementById(id).style.display='none';
}