if(window.FastInit)
	FastInit.addOnLoad(initPage);
else
	Element.observe(window, 'load', initPage);
	
function initPage() {
	var form = $('ListingNumberSearch');

	if(Validation && form) {
		Validation.add('validate-digit-set', 'Please use only groups of numbers separated by commas in this field.', {
			 pattern 			: /^\s*\d+\s*(,\s*\d+\s*)*$/ // groups of digits
		});

		new Validation(form);
	}
}