gistfile1.js

/***********************************************************/
/*                    LiveFilter Plugin                    */
/*                      Version: 1.0                       */
/*                      Mike Merritt                       */
/*                Updated January 4th, 2009                */
/***********************************************************/

(function($){  
	$.fn.liveFilter = function (filter_field, items, text) {
		// Grabs the id of the element containing the filter
		var haystack = $(this);
		
		// Listen for the value of the input to change
		$(filter_field).keyup(function() {
			
			// Grab the current value of the filter
			var needle = $(this).val();
			
			// Hide all elements that do not contain the filter string
			haystack.children(items).children(text+':not(:inContains("'+needle+'"))').parent(items).hide();
			
			// Show already hidden elements that do contain the filter string
			haystack.children(items).children(text+'::inContains("'+needle+'")').parent(items).show();		
		});
		
		//  Used for a case insensitive :contains selector
		jQuery.extend(
			jQuery.expr[':'], { 
				inContains : function(a,b,m) {
					return jQuery(a).text().toUpperCase().indexOf(m[3].toUpperCase()) >= 0; }
		});
	}

})(jQuery);