jQuery image crossfader problem

Posted by Dr Casper Black on Stack Overflow See other posts from Stack Overflow or by Dr Casper Black
Published on 2010-03-13T00:38:22Z Indexed on 2010/03/13 1:27 UTC
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Hey!,

I have a image switcher fadein/out (it will crossfade iamges - auto(1 - x) ) and a pager but i cant manage to make the image rotation listen the click action on pager, when clicked on pager the image will NOT jup tu the specific img.

The problem is in the rotate function the triggerID will hold the "rel" num of the current pager-element which is the equivalent to the image "list" num, so when clicked on the pager, the triggerID will show the rel number that was clicked... can i use that to display the image

Here is the code for JQ:

$(".paging a:first").addClass("active");

//Rotation
rotate = function(){
 var triggerID = $active.attr("rel"); //Get number of times to images

 $(".paging a").removeClass('active'); //Remove all active class
 $active.addClass('active'); //Add active class (the $active is declared in the rotateSwitch function)


 //CrossFade Animation
 var $activeImg = $('.image_reel img.active');
 if ( $activeImg.length == 0 ) $activeImg = $('.image_reel img:last');

 var $next =  $activeImg.next().length ? $activeImg.next() : $('.image_reel img:first');

 $activeImg.addClass('last-active');

 $next.css({opacity: 0.0})
  .addClass('active')
  .animate({opacity: 1.0}, 500, function() {
   $activeImg.removeClass('active last-active');
  });
}; 

//Rotation  and Timing Event
rotateSwitch = function(){
 play = setInterval(function(){ //Set timer - this will repeat itself every 3 seconds
  $active = $('.paging a.active').next(); //Move to the next paging

  if ( $active.length === 0) { //If paging reaches the end...
   $active = $('.paging a:first'); //go back to first

  }

  rotate(); //Trigger the paging and slider function
 }, 3000); //Timer speed in milliseconds (3 seconds)
};

rotateSwitch(); //Run function on launch



//On Click
$(".paging a").click(function() {
 $active = $(this); //Activate the clicked paging
 //Reset Timer
 clearInterval(play); //Stop the rotation
 rotate(); //Trigger rotation immediately
 rotateSwitch(); // Resume rotation timer
 return false; //Prevent browser jump to link anchor
});

The HTML code:

<div class="image_reel">
    <img src="images/slideshow/img1.jpg" alt="image 1" class="active">
    <img src="images/slideshow/img2.jpg" alt="image 2">
    <img src="images/slideshow/img3.jpg" alt="image 3">
    <img src="images/slideshow/img4.jpg" alt="image 4">
</div>

<div class="paging">
  <a href="#" rel="1" title="image 1">&nbsp;</a>
  <a href="#" rel="2" title="image 2">&nbsp;</a>
  <a href="#" rel="3" title="image 3">&nbsp;</a>
  <a href="#" rel="4" title="image 4">&nbsp;</a>
</div>

plz help.

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