做页面时经常会遇到当前页面加载完成后,执行某些初始化工作。这时候就要知道如何判断页面(包括IFRAME)已经加载完成,代码如下:
< script language = "javascript" >
document.onreadystatechange = statechange;
function statechange() {
if (document.readyState == 'complete') {
for (i = 0; i < window.frames[].length; i++) {
window.frames[i].document.onreadystatechange = statechange;
if (window.frames[i].document.readyState != 'complete') {
statechange();
alert("加载完毕!");
return;
}
}
}
}
< /script>
FROM:http://www.kqiqi.com/knowledge/program/717.html
用document.onreadystatechange的方法来监听状态改变,
然后用document.readyState == “complete”判断是否加载完成
< script language = "javascript" >
document.onreadystatechange = subSomething; //当页面加载状态改变的时候执行这个方法.
function subSomething() {
if (document.readyState == “complete”) //当页面加载状态
alert("加载完毕!"); //加载完毕
}
</script>
页面加载readyState的五种状态
原文如下:
0: (Uninitialized) the send( ) method has not yet been invoked.
1: (Loading) the send( ) method has been invoked, request in progress.
2: (Loaded) the send( ) method has completed, entire response received.
3: (Interactive) the response is being parsed.
4: (Completed) the response has been parsed, is ready for harvesting.
翻译成中文为:
0 - (未初始化)还没有调用send()方法
1 - (载入)已调用send()方法,正在发送请求
2 - (载入完成)send()方法执行完成,已经接收到全部响应内容
3 - (交互)正在解析响应内容
4 - (完成)响应内容解析完成,可以在客户端调用了
FROM: http://www.jb51.net/article/32569.htm
方法一
<body onload="alert();">
< script language = "javascript" >
//方法二
$(document).ready(function(){
alert("加载完毕!");//执行
})
//方法三
window.onload = function(){
//全部加载完成!!
}
</script>