Loading Javascript conditionally for IE. When rendering fixes are needed for IE, you can enclose CSS, JavaScript, or HTML markup in conditional comment tags directed at one or more versions of IE with an "if" statement; IE will then execute the code specified within them, while all other browsers treat them as standard comment tags and ignore them. The "if" statement must reference IE in square brackets as shown below; in this example include script only for IE
<!--[if IE]>
<script type="text/javascript">
/* Do Stuff */below example shows how to exclude a script block from IE:</script><![endif]-->
<![if !IE]>
<script type="text/javascript">
/* Do Stuff */
</script>
<![endif]>Conditional comments can also be targeted to a particular version of IE, or a subset of versions, like those released prior to IE7 or IE6
<!--[if lt IE 7]>
<link rel="stylesheet" type="text/css" href="ie_fixes.css" />
<![endif]-->
Hope this helps!