function ajax(div, script, data) {
	var xmlHttp;
	
	try {
		// Firefox, Opera, Safari
		xmlHttp = new XMLHttpRequest();
	}
	catch(e) {
		// Inernet Explorer
		try {
			xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch(e) {
			try {
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch(e) {
				alert("Your Browser Does Not Support Ajax");
				return false;
			}
		}
	}	
	
	xmlHttp.onreadystatechange=function() {
		if(xmlHttp.readyState == 4) {
			document.getElementById(div).innerHTML = xmlHttp.responseText;
		}
		else {
			document.getElementById(div).innerHTML = "<img src='images/processing.gif' alt='processing' />";
		}
	}
	
	xmlHttp.open("GET", script + "?newsletter_mail=" + data ,true);
	xmlHttp.send(null);
}