var please_wait = null;

function open_url(url, target) {
	var link;
	if (!document.getElementById) return false;
	if (please_wait != null) document.getElementById(target).innerHTML = please_wait;
	if (window.ActiveXObject) {
		link = new ActiveXObject("Microsoft.XMLHTTP");
 	} else if (window.XMLHttpRequest) link = new XMLHttpRequest();
 	if (link == undefined) return false;
 	link.onreadystatechange = function() { response(link, url, target); }
 	link.open("GET", url, true);
 	link.send(null);
}

function response(link, url, target) {
	if (link.readyState < 4) {
		document.getElementById(target).innerHTML = "<span style='padding:12px;font-size:12px;color:#cccccc;';>ÔØÈëÖУ¬ÇëÉÔºó...</span>";
	} else {
		document.getElementById(target).innerHTML = (link.status == 200) ? link.responseText : "Error!!!errorcode: " + link.status;
	}
}

function set_loading_message(msg) {
 	please_wait = msg;
}