// Jquery plug in for fade rotation of testimonials

(function ($) {
	  $.fn.fadeTransition = function(options) {
		 var transitionObject,
			  options = $.extend({pauseTime: 5000,
										 transitionTime: 2000,
										 ignore: null,
										 delayStart: 0,
										 pauseOnMouseOver: false,
										 manualNavigation: false,
										 createNavButtons: false}, options);
										 
		 function fader(obj) {
			var timer = null,
				 current = 0;
				 els = (options.ignore)?$("> *:not(" + options.ignore + ")", obj):$("> *", obj);
			
			function setup() {
			  $(obj).css("position", "relative");
			  els.css("display", "none").css("left", "0").css("top", "0").css("position", "absolute");
			  
			  if (options.createNavButtons) {
				 createNavButtons();
			  }
			
			  if (options.pauseOnMouseOver) {
				 $(obj).mouseover(pause).mouseout(cue);
			  }
			
			  if (options.delayStart > 0) {
				 setTimeout(showFirst, options.delayStart);
			  }
			  else {
				 showFirst();
			  }
			}
			
			setup();
			
			function createNavButtons() {
			  var i, nav = $('<div class="fadenav"></div>');
			  for (i=0; i<els.length; i++)
				 $('<a href="#">&nbsp;</a>').click(manualNav).appendTo(nav);
				 
			  nav.appendTo(obj);
			}
			
			function manualNav(e) {
			  var item;
			  e = e || window.event;
			  $(e.target).blur();
			  item = $('.fadenav a', obj).index(e.target);
			  if (timer) {
				 clearTimeout(timer);
			  }
			  transition(item);
			  return false;
			}
			
			function pause() {
			  if (timer)
				 clearTimeout(timer);
			}
			
			function highlightNav() {
			  if (options.createNavButtons) {
				 $('.fadenav a', obj).removeClass('current');
				 $('.fadenav a:nth-child(' + (1 + current) + ')', obj).addClass('current');
			  }
			}
			
			function showFirst() {
			  if (options.ignore) {
				 $(options.ignore, obj).fadeOut(options.transitionTime);
				 $(els[current]).fadeIn(options.transitionTime, cue);
			  }
			  else {
				 $(els[current]).css("display", "block");
			  }
			  
			  highlightNav();
			}
	
			function transition(next) {
			  $(els[current]).fadeOut(options.transitionTime);
			  $(els[next]).fadeIn(options.transitionTime);
			  current = next;
			  highlightNav();
			  cue();
			}
	
			function cue() {
			  if ($("> *", obj).length < 2) {
				 return false;
			  }
			  
			  if (timer) {
				 clearTimeout(timer);
			  }
			  
			  if (!options.manualNavigation) {
				 timer = setTimeout(function() { transition((current + 1) % els.length | 0)} , options.pauseTime);
			  }
			}
		 }
	
		 return this.each(function() {
			new fader(this);
		 });
	  }
	
	})(jQuery);