[jQuery] clockpicker plugin doesn't show

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I've inherited some code that uses the clock picker plugin however it
doesn't seem to work in IE 8 and Firefox 3.5.  This is the code for
the picker.

$('<img/>')
                .attr('alt', 'clockpicker')
                .attr('src', '/community/tournamentsystem/images/clock.png')
                .attr('class', 'ui-datepicker-trigger')
                .attr('id', 'start_date_clockpicker')
                .insertAfter('#id_start_date_1')

$('#start_date_clockpicker').clockpick({
                valuefield: 'start_date_1',
                military: true,
                starthour: 0,
                endhour: 23})

I have downloaded the latest version of the clockpicker but it still
doesn't work in these browsers.