function AjxCall() {
	url			= '';
	callback		= null;
	http_request	= null;
	post_data		= null;
	layerID			= null;
}
AjxCall.prototype.call = function(url, callback) {
	this.url		= url;
	this.callback	= callback;

	if (window.XMLHttpRequest) {
		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) {
				var output = new Array(false, '', this.layerID);
				return output;
			}
		}
	}
	if (!http_request) {
		var output = new Array(false, '', this.layerID);
		return output;
	}
	var layerID = this.layerID;
	http_request.onreadystatechange = function () {
		if (http_request.readyState == 4) {
			if (http_request.status == 200) {
				if (callback) {
					var response = trim(http_request.responseText);
					var output	 = new Array(true, response, layerID);
					eval(callback).apply(this, output);
				}
			} else {
			}
		}
	};


	http_request.open("POST" , url, true);
	http_request.setRequestHeader("Content-Type","application/x-www-form-urlencoded");    

	var post_data = '';
	for(var key in this.post_data) {
		post_data += key+"="+encodeURIComponent(this.post_data[key])+'&';
	}
	http_request.send(post_data);  
}

function mouse_over_tab(e) {
	if (window.current_li == null) {
		var tabs = fp (e,'div', {id:'tabs'}, null);	var current_tab = fc (tabs, 'li', null, 'current_tab', true);	if (current_tab) {		current_tab.className = '';	}} else {window.current_li.className = '';}window.current_li = e;e.className = 'current_tab';
};