// JavaScript Document
var http_request = false; 
function makePOSTRequest(url, parameters, div) { 
	http_request = false; 
	if (window.XMLHttpRequest) { // Mozilla, Safari,... 
		http_request = new XMLHttpRequest(); 
		if (http_request.overrideMimeType) { 
			http_request.overrideMimeType('text/xml'); 
		} 
	} else if (window.ActiveXObject) { // IE 
		try { 
			http_request = new ActiveXObject("Msxml2.XMLHTTP"); 
		} catch (e) { 
			try { 
				http_request = new ActiveXObject("Microsoft.XMLHTTP"); 
			} catch (e) {} 
		} 
	} 
	if (!http_request) { 
		alert('Cannot create XMLHTTP instance'); 
		return false; 
	} 
	
	document.getElementById(div).innerHTML = "Please wait...";  
	
	http_request.onreadystatechange = function() { 
		if (http_request.readyState == 4) { 
			if (http_request.status == 200) {  
				document.getElementById(div).innerHTML = http_request.responseText;            
			} else { 
				alert('There was a problem with the request.'); 
			} 
		}
	} 
	http_request.open('POST', url, true); 
	http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded"); 
	http_request.setRequestHeader("Content-length", parameters.length); 
	http_request.setRequestHeader("Connection", "close"); 
	http_request.send(parameters); 
}

function checkDomain(name, ext) {
  var poststr = 'act=checkDomain&name=' + name + '&ext=' + ext;
  makePOSTRequest('/includes/ajax_request.php', poststr, 'DIV_CheckDomain');
}