Upgraded jQuery.removeClass, handles Regular Expression

jquery.removeClass.regexp.js

( function( $ ) {
	// Store the original method for all other uses
	var oldRemoveClass = $.fn.removeClass;
	
	// Replace existing method iwth new version
	$.fn.removeClass = function( className ) {
		if ( className instanceof RegExp ) {
			// Run a regex replace on each element's class name list
			return $( this ).each( function() {
				var classes = $( this ).attr( 'class' ) || '';
				classes = classes.replace( className, '' ).trim(); // For excess spaces
				$( this ).attr( 'class', classes );
			} );
		} else {
			// Use original method
			return oldRemoveClass.apply( this, arguments );
		}
	};
} )( jQuery );