Select parent form for a given input

[jamesbcox1980]

I have the following code:

$(function() {
    // Attach onclick event to Clear buttons on all forms
    $('.resetForm-mthdClear').click(
        function() {
            // Reset the form
            this.form.reset();
            // Remove selected="selected" from Select options
            $(this.form).find('option:selected').attr('selected','');
        }
    );
});

Is there any reason why "this.form" wouldn't work in some browsers/operating systems? I thought it was pretty standard, but a user complained that the button wasn't doing anything for them in Firefox/Windows 7.

Should I use:

$(this).closest('form').each(
    function() {
        this.reset();
    }
});

instead?