function makeHttpRequest(method, url, params, id, multipart) {
	var http_request = false;
	
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		http_request = new XMLHttpRequest();
	} 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)
		return false;

	http_request.onreadystatechange=function() {
		if (http_request.readyState == 4 && id != ''){
			document.getElementById(id).innerHTML =  http_request.responseText;
		}
	}
	
    http_request.open(method, url, true);
 	if(method == "GET")
	    http_request.send(null);
	else if (multipart) { 
		http_request.setRequestHeader('Content-Type','multipart/form-data');
		http_request.send(params);
	} else { 
		http_request.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
		http_request.send(params);
	}
}