var xmlhttp;

function subscribe()
{
	document.getElementById('ml').style.display='';
	var str = document.getElementById('newsletter_email').value;
	if(str.length==0)
	{
		document.getElementById("subs_msg").innerHTML="Please enter Email Address.";
		return;
	}
	if((/^[a-zA-Z0-9._-]+@([a-zA-Z0-9.-]+\.)+[a-zA-Z.]{2,5}$/).exec(str)== null)
	{
		document.getElementById("subs_msg").innerHTML="Please enter valid Email Address.";
		return;
	}
	
	document.getElementById('newsletter_email').value = "";
	xmlhttp=GetXmlHttpObject();
	if(xmlhttp==null)
	{
		alert ("Your browser does not support XMLHTTP!");
		return;
	}
	var url="subscribe.php";
	url=url+"?eml="+str;
	url=url+"&sid="+Math.random();
	xmlhttp.onreadystatechange=stateChanged;
	xmlhttp.open("GET",url,true);
	xmlhttp.send(null);
}

function stateChanged()
{
	if(xmlhttp.readyState==4)
	{
		document.getElementById("subs_msg").innerHTML=xmlhttp.responseText;
	}
}

function GetXmlHttpObject()
{
	if(window.XMLHttpRequest)
	{
		// code for IE7+, Firefox, Chrome, Opera, Safari
		return new XMLHttpRequest();
	}
	if(window.ActiveXObject)
	{
		// code for IE6, IE5
		return new ActiveXObject("Microsoft.XMLHTTP");
	}
	return null;
}