function clickURL(url){
	var 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) {
		alert('Не вышло :( Невозможно создать экземпляр класса XMLHTTP ');
		return false;
	}
	http_request.onreadystatechange = function() { alertContents(http_request); };
	http_request.open('GET', url, true);
	http_request.send(null);
}

function alertContents(http_request) {
	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
			document.getElementById('ajaxCalendar').innerHTML = http_request.responseText;
			//alert(http_request.responseText);
		} else {
			alert('С запросом возникла проблема.');
		}
	}
}