<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>document.ready</title>
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<script type="text/javascript">
var Darren;
(function(){
var isReady=false; //是否已經(jīng)加載完畢
var readBound=false; //判斷是否已經(jīng)調(diào)用過循環(huán)事件
var readylist=[]; //把需要執(zhí)行的方法先暫存在這個數(shù)組里
//判斷瀏覽器，該方法來自Cloudgamer JavaScript Library v0.1
var Browser = (function(ua){
var b = {
msie: /msie/.test(ua) && !/opera/.test(ua),
opera: /opera/.test(ua),
safari: /webkit/.test(ua) && !/chrome/.test(ua),
firefox: /firefox/.test(ua),
chrome: /chrome/.test(ua)
};
var vMark = "";
for (var i in b) {
if (b[i]) {
vMark = i;
}
}
if (b.safari) {
vMark = "version";
}
b.version = RegExp("(?:" + vMark + ")[///: ]([//d.]+)").test(ua) ? RegExp.$1 : "0";
b.ie = b.msie;
b.ie6 = b.msie && parseInt(b.version) == 6;
b.ie7 = b.msie && parseInt(b.version) == 7;
b.ie8 = b.msie && parseInt(b.version) == 8;
return b;
})(window.navigator.userAgent.toLowerCase());
function bindReady()
{
if(readBound){ //保證bindReady方法只執(zhí)行一遍
return;
}
readBound=true;
//For IE并且不是嵌套在frame中
if (Browser.msie && window==top)
{
(function(){
if (isReady) {
return;
}
try {
document.documentElement.doScroll("left"); //如果沒加載dom完畢這個會報錯
}
catch (error) {
setTimeout(arguments.callee, 0); //循環(huán)調(diào)用父函數(shù),也就是ready方法
return;
}
Test.Done();
})();
}else if(Browser.firefox)//For FF
{
document.addEventListener( "DOMContentLoaded", Test.Done, false );
}
}
var Test={
ready:function(fn){
bindReady();//判斷是否加載完畢
if(isReady)
{
fn.call(document); //加載完畢，直接調(diào)用
}else{
readylist.push(fn);//如果還沒加載完成則將該方法暫存到readylist數(shù)組中，以便以后調(diào)用
}
return this;
}
};
//靜態(tài)方法：加載完畢執(zhí)行
Test.Done=function(){
if (!isReady) {
isReady=true;
}
readylist[0].call(document);
}
Darren=Test;
})();
//測試
Darren.ready(function(){
alert("my");
document.getElementById("test").innerHTML="haha" //成功讀取dom
});
$(function(){alert("jq")});
window.onload=function(){alert("default")}
</script>
</head>
<body>
<div id="test">test</div>
</body>
</html>
