(function($) {
	$(window.document).bind('ready', function() {
		var $checkbox = $('#eula-accept');
		if ($checkbox.length !== 1)
			return;
		
		var $submit = $('#submit');
		if ($submit.length !== 1)
			return;
		
		var $form = $submit.closest('form');
		if ($form.length !== 1)
			return;
		
		$checkbox.bind('change click', function(ev) {
			var checked = $checkbox.attr('checked');
			if (checked)
				$submit.show();
			else
				$submit.hide();
		}).trigger('change');
		
		$form.bind('submit', function(ev) {
			var checked = $checkbox.attr('checked');
			if (!checked)
				ev.preventDefault();
		});
	});
})(window.jQuery);