var http_request = false;

function Ajax(url,val,func) {
	if(http_request) http_request.abort();
	http_request = false;
	//val= EscapeToWin(val);


	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('Giving up :( Cannot create an XMLHTTP instance');
		return false;
	}

	assinc=!(func==null);
	//alert(assinc);
	if(assinc)	http_request.onreadystatechange = func;

	http_request.open('POST', url, assinc);
	//http_request.setRequestHeader('Content-Type','application/x-www-form-urlencoded; charset=windows-1251');
	//http_request.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
	http_request.send(val);

	if(!assinc){
		return http_request.responseText;
	}
}