function removeSharing(username, journal_id) {
	if (confirm(lang_remove_journal_sharing_confirm)) {
		var params = "type=journal&username=" + username + "&id=" + journal_id;
		makeRequest("/community/add_share_remove_ajax.php?" + params, "sharing");
	}
}


function makeRequest(url, type) {
	var http_request = false;

	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; }

	http_request.onreadystatechange = function () {
		if (http_request.readyState == 4) {
			if (type=="sharing") {
				if (http_request.responseText=="ok") {
					alert(lang_journal_unlinked_ok);
					location.reload(true);
				}
			}
		}
	}

	http_request.open('GET', url, true);
	http_request.send(null);
}