function makeRequest()
{
	var id = document.getElementById('plus').getAttribute('href');
	id = id.substr(1);
	var url = '/pluses.php?id='+id;

	ajaxRequest = false;

	if (window.XMLHttpRequest) { // Mozilla, Safari,...
		ajaxRequest = new XMLHttpRequest();
	} else if (window.ActiveXObject) { // IE
		try {
			ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			try {
				ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e) {}
		}
	}

	if (ajaxRequest) {
		ajaxRequest.onreadystatechange = refreshPluses;
		ajaxRequest.open('GET', url, true);
		ajaxRequest.send(null);
	}

	return false;
}

function refreshPluses()
{
	if (ajaxRequest.readyState == 4) {
		if (ajaxRequest.status == 200) {
			var text = ajaxRequest.responseText;

			if(text != 0) {
				document.getElementById('plusesCount').innerHTML = parseInt(text);
				document.getElementById('plus').innerHTML = '';
			}
		}
	}
}

window.onload = function() {
	document.getElementById('plus').onclick = function() { makeRequest() };
}