var returnurl = ''; 
var messagebox_timer; 
$.fn.messagebox = function (message, url, type, delay) {
	clearTimeout(messagebox_timer); 
	$("#msgprint").remove();
	var m_body = $(this), timer = false; 
	delay = (typeof delay == "undefined" ? 5000 : delay); 
	returnurl = url; 
	var box_style = 'position:absolute;display:none;z-index:1000;padding:10px 30px 10px 40px;'; 
	switch (type) { 
	case 1: box_style += 'border:1px solid Green;color:#090;background:url(Public/image/ok.png) 10px 10px no-repeat #F1FEF2;'; break; 
	case 0: box_style += 'border:1px solid Red;color:#EE1010;background:url(Public/image/error.png) 10px 10px no-repeat #FDF8E8;'; break; 
	default: box_style += 'border:1px solid Orange;color:Orange;background:url(Public/image/warning.png) 10px 10px no-repeat #FEFDE9;'; break } 
	var str = "<div id=\"msgprint\" style=\"" + box_style + "\">" + message + "</div>"; m_body.append(str); 
	var dom_obj = document.getElementById("msgprint"); 
	var ext_width = $("#msgprint").width(); 
	dom_obj.style.top = (document.documentElement.scrollTop + (document.documentElement.clientHeight - dom_obj.offsetHeight - $("#msgprint").height()) / 2) + "px"; 
	dom_obj.style.left = (document.documentElement.scrollLeft + (document.documentElement.clientWidth - dom_obj.offsetWidth - $("#msgprint").width()) / 2) + "px"; 
	$("#msgprint").fadeIn(1000, function () { messagebox_timer = setTimeout(messagebox_out, delay) }) }; 
	function messagebox_out() { 
		if (returnurl == undefined || returnurl == '') { 
			$("#msgprint").fadeOut(1000) } 
		if (returnurl == "back") { 
			this.history.back(-1) } 
		else if (returnurl != "" && returnurl != undefined) { this.location.href = returnurl } 
	}