var http_request = false;
function send_request(method,url,content,responseType,callback) {
	http_request = false;
	if(window.XmlHttpRequest) { 
		http_request = new XmlHttpRequest(); 
		if (http_request.overrideMimeType) {
			http_request.overrideMimeType("text/xml");
		}
	}
	else if (window.ActiveXObject) { 
		try {
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}
	if (!http_request) { 
		return false;
	}
	if(responseType.toLowerCase()=="text") {
		http_request.onreadystatechange = callback;
	}
	else {
		return false;
	}
	if(method.toLowerCase()=="get") {
		http_request.open(method, url, true);
	}
	else {
		return false;
	}
	http_request.send(content);
}