/*
 * FeatureList - simple and easy creation of an interactive "Featured Items" widget
 * Examples and documentation at: http://jqueryglobe.com/article/feature_list/
 * Version: 1.0.0 (01/09/2009)
 * Copyright (c) 2009 jQueryGlobe
 * Licensed under the MIT License: http://en.wikipedia.org/wiki/MIT_License
 * Requires: jQuery v1.3+
*/
(function($) {
	$.fn.featureList = function(options) {
		var tabs	= $(this);
		var output	= $(options.output);

		new jQuery.featureList(tabs, output, options);

		return this;	
	};
	
	$.featureList = function(tabs, output, options) {
		function slide(nr, flag) {
			if (typeof nr == "undefined") {
				nr = visible_item + 1;
				nr = nr >= total_items ? 0 : nr;
			}
			
			if (($('#tabs li.current').index() > nr && nr != 0) || (typeof flag == 'boolean')) {
				tabs.removeClass('current').filter(":eq(" + nr + ")").addClass('current');
	
				output.stop(true, true).filter(":visible").hide('slide', { direction: "right" }, 1000);//output.stop(true, true).filter(":visible").fadeOut('slow');
				output.filter(":eq(" + nr + ")").show('slide', { direction: "left" }, 1000, function() { visible_item = nr; });
			}
			else {
				tabs.removeClass('current').filter(":eq(" + nr + ")").addClass('current');
				
				output.stop(true, true).filter(":visible").hide('slide', { direction: "left" }, 1000);//output.stop(true, true).filter(":visible").fadeOut('slow');
				output.filter(":eq(" + nr + ")").show('slide', { direction: "right" }, 1000, function() { visible_item = nr; });
			}
		}

		var options			= options || {}; 
		var total_items		= tabs.length;
		var visible_item	= options.start_item || 0;

		options.pause_on_hover		= options.pause_on_hover		|| true;
		options.transition_interval	= options.transition_interval	|| 6000;

		output.hide().eq( visible_item ).show();
		tabs.eq( visible_item ).addClass('current');

		tabs.click(function() {
			if ($(this).hasClass('current')) {
				return false;	
			}
			
			if ($(this).index() == 0) {
				slide(tabs.index(this), true);
			}
			
			else {
				slide( tabs.index( this) );
			}
		});

		if (options.transition_interval > 0) {
			var timer = setInterval(function () {
				slide();
			}, options.transition_interval);

			if (options.pause_on_hover) {
				tabs.mouseenter(function() {
					clearInterval( timer );

				}).mouseleave(function() {
					clearInterval( timer );
					timer = setInterval(function () {
						slide();
					}, options.transition_interval);
				});
			}
		}
		
		
		//.................................. Handles the next and previous buttons for the rotator
					$('#rotator span.previous').click(function() {
						var current_class = new String('');
						var iterator = new Number(0);
						
						do {
							current_class += $('#tabs li.current').attr('class').charAt(iterator);
						} while (iterator++<15);		
						
						var previous_class = new String(current_class.substring(0, 15));
						
						switch(current_class.charAt(15)) {
							case '1':
								previous_class += '4';
								break;
							case '2':
								previous_class += '1';
								break;
							case '3':
								previous_class += '2';
								break;
							case '4':	
								previous_class += '3';
								break;		
						};
						
						if (($('#output li.' + previous_class).index() == 0) || ($('#output li.' + previous_class).index() == 3)) {
							slide($('#output li.' + previous_class).index(), true);
						}
						else {
							slide($('#output li.' + previous_class).index());
						}
						
						delete current_class;
						delete iterator;
						delete previous_class;		
					});
					
					$('#rotator span.next').click(function() {
						var current_class = new String('');
						var iterator = new Number(0);
						
						do {
							current_class += $('#tabs li.current').attr('class').charAt(iterator);
						} while (iterator++<15);		
						
						var next_class = new String(current_class.substring(0, 15));
						
						switch(current_class.charAt(15)) {
							case '1':
								next_class += '2';
								break;
							case '2':
								next_class += '3';
								break;
							case '3':
								next_class += '4';
								break;
							case '4':	
								next_class += '1';
								break;		
						};
						
						slide($('#output li.' + next_class).index());
						
						delete current_class;
						delete iterator;
						delete next_class;
					});
	};
})(jQuery);