Using a jQuery selector that uses the '@' symbol in an MVC3 application

Here's what I'm trying to run:

<script type="text/javascript">
    $("input[@name='paymenttype']").change(function(){
        if ($("input[@name='paymenttype']:checked").val() == 'deposit') {
            //Display deposit form.
        }
        else if ($("input[@name='paymenttype']:checked").val() == 'creditcard') {
            // Display credit card form.                
        }
    });
</script>

However, the Razor view engine is catching my @ symbol.

Is there some way to tell it to ignore that specific instance of the @ symbol?

You shouldn't be using @ in those selectors.
This syntax has been deprecated since jQuery 1.2, and it was removed in 1.3.

To answer your questions, you can output a literal @ by writing @@, or you can move that code to an external (non-Razor) .js file.