js 浏览器兼容有关问题

js 浏览器兼容问题
About

IE7.js is a JavaScript library to make Microsoft Internet Explorer behave like a standards-compliant browser. It fixes many HTML and CSS issues and makes transparent PNG work correctly under IE5 and IE6.

Current version: 2.1 beta4.

Upgrade MSIE5.5-6 to be compatible with MSIE7.

<!--[if lt IE 7]><script src="http://ie7-js.googlecode.com/svn/version/2.1(beta4)/IE7.js"></script><![endif]-->

Upgrade MSIE5.5-7 to be compatible with MSIE8.

<!--[if lt IE 8]><script src="http://ie7-js.googlecode.com/svn/version/2.1(beta4)/IE8.js"></script><![endif]-->

You do not need to include IE7.js if you are using IE8.js

Upgrade MSIE5.5-8 to be compatible with modern browsers.

<!--[if lt IE 9]><script src="http://ie7-js.googlecode.com/svn/version/2.1(beta4)/IE9.js"></script><![endif]-->

You do not need to include IE7/IE8.js if you are using IE9.js

The script only fixes images named: *-trans.png

If you want the fix to apply to all PNG images then set a global variable as follows:

var IE7_PNG_SUFFIX = ".png";

You must set this variable before including the IE7.js script. Alternatively, you can set the variable inside the IE7.js script element:

<script src="IE8.js">IE7_PNG_SUFFIX=".png";</script>

The suffix will ignore query string parameters. For more fine-grained control you can also set IE7_PNG_SUFFIX to a RegExp object. If you want to use analternative PNG solution then set the suffix to something that cannot possibly match:

var IE7_PNG_SUFFIX = ":";

By default, the PNG will be stretched (this simulates tiling). If you want to turn this off then set theno-repeat property as follows:

div.example {  background: url(my-trans.png) no-repeat;}

Unfortunately, the transparent background image cannot be tiled (repeated) usingbackground-repeat. Nor can it be positioned using background-position.

You may link directly to these files if you wish:

http://ie7-js.googlecode.com/svn/version/

Or go to the downloads section to download the current version.

Here is a nice introduction:

http://www.charlescooke.me.uk/web/lab_notes/ie7_script.html

http://ie7-js.googlecode.com/svn/test/index.html