JQuery :: Star-rating Plugin Callback Function Throwing Error?

I'm using this star-rating plugin [URL] and the call back function provided to allow for submission of forms onclick of rating star.

Code:
$(document).ready(function() {
$('form.entry_rating').rating( {
callback:function(value, link) {
alert(value);
}
});
});

However, once the callback is included I get an error I've been trying to track down for the past day and a half. In IE the error thrown is "Object doesn't support this property or method" on Line 100 character 4. In my JS debugger the plugin breaks on line 99

[Code]....