IE7 not rendering JS file correctly
<p>We have a javascript rendering problem with our site .
When we browse this site in IE9 or Firefox, it works as expected,
but when we browse this site in IE7, and click the Login button we get an error - A runtime error has occurred</p>

<p>Error :Object Expected.</p>

<p>This problem is not occurring repeatedly.  It seems that when we clear temparary files and then browse the site for the first time in IE7, this problem occurs, but if we load the site in IE9 and then in IE7, it never occurs.</p>
