Compatible Ie/firefox/opera/safari test page load complete script Ext.onready implementation _javascript skill

Copy Code code as follows:

<script type= "Text/javascript" ><!--
function Googleresize () {
Alert (1);
}
var ua=navigator.useragent.tolowercase ();
var isstrict=document.compatmode== "Css1compat",
Isopera=ua.indexof ("opera") >-1,
Issafari= (/webkit|khtml/). Test (UA),
Isie=ua.indexof ("MSIE") >-1,
Isie7=ua.indexof ("MSIE 7") >-1,
Isgecko=!issafari&&ua.indexof ("Gecko") >-1,
Isborderbox=isie&&!isstrict,
Iswindows= (Ua.indexof ("Windows")!=-1| | Ua.indexof ("Win32")!=-1),
Ismac= (Ua.indexof ("Macintosh")!=-1| | Ua.indexof ("Mac OS X")!=-1),
islinux= (Ua.indexof ("Linux")!=-1),
Issecure=window.location.href.tolowercase (). IndexOf ("https") ===0;
if (Isgecko | | isopera) {
Document.addeventlistener ("domcontentloaded", googleresize, false);
}else if (Isie) {
document.write ("<s" + ' cript id= "Ie-deferred-loader" defer= "defer" src= "/' + '/:" ></s ' + "cript>");
var defer = document.getElementById ("Ie-deferred-loader");
Defer.onreadystatechange = function () {
if (this.readystate = = "complete") {
Googleresize ();
}
};
}else if (Ext.issafari) {
Docreadyprocid = setinterval (function () {
var rs = document.readystate;
if (rs = = "complete") {
Googleresize ();
}
}, 10);
}else{
Window.onload=googleresize;
}
--></script>

The detection of IE is very interesting.
The above code, collation from ExtJS script, completely can replace ext.onready use.