ajax_navagation.js

来自「网站制作常用经典ajax.prototype.javascript实例」· JavaScript 代码 · 共 38 行

/*
Design By Xinge At 2007-05-22
Demo:http://www.sysapi.com/test/ajax2/test.htm
*/
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) {
	//alert(link.readyState + ' -- ' + target);
	//alert(link.readyState);
	if (link.readyState < 4) {
		document.getElementById(target).innerHTML = "<img src='loading.gif' alt='loading...'><span style='padding-left:6px; font-size: 14px; color:#FF9900';>载入中，请稍后...</span>";
	} else {
		document.getElementById(target).innerHTML = (link.status == 200) ? link.responseText : "Ooops!! A broken link! Please contact the webmaster of this website ASAP and give him the fallowing errorcode: " + link.status;
	}
}

function set_loading_message(msg) {
 	please_wait = msg;
}