/* --------------------------------------------------------------------
 * easyslideshow
 * This script is part of Onlinetools 
 *  http://www.onlinetools.org/easyslideshow/
 * free of use with these lines included!  
 *
 *  Version 1.0 initial                                      
 * --------------------------------------------------------------------*/

/* --------------------------------------------------------------------
 * Setting up the data.
 * --------------------------------------------------------------------*/
rotator=true;  // needed for initialising the rotator
n=0;        // initialising the first image 
// The images, add and delete yours here...
theImages="http://www.commerceresources.com/i/misc/dsc00022.jpg, http://www.commerceresources.com/i/misc/dsc00024aaa.jpg, http://www.commerceresources.com/i/misc/Pyrochlores_1.jpg, http://www.commerceresources.com/i/misc/my_power.jpg, http://www.commerceresources.com/i/misc/my_road.jpg, http://www.commerceresources.com/i/misc/my_train.jpg, http://www.commerceresources.com/i/misc/dsc00031aaa.jpg, http://www.commerceresources.com/i/misc/Pyrochlore_Carbonatite.jpg".split(", ");
allImages=theImages.length;
// Creating the needed image objects => preloading
imgObjects=new Array();
for (i in theImages)
{
   imgObjects[i]=new Image();
   imgObjects[i].src=theImages[i];
}
/* --------------------------------------------------------------------
 * function autoplay() 
 *  Allows to automatically change the images.
 *  Options:
 *    run - can be 1 or 0, 1 starts the play, 0 ends it 
 *    srcimage - defines the image that will be replaced by the others
 *    direction - 1 forward -1 backward
 *    speed - speed in milliseconds
 *  requires the function rotate()
 * --------------------------------------------------------------------*/
function autoplay(run,srcimage,direction,speed)
{
   // delete old settings
   clearInterval(rotator)
   if (run != 0)
   {
      rotator=setInterval("rotate('"+srcimage+"',"+direction+")",speed);
   }else{
      clearInterval(rotator);
   }
}

/* --------------------------------------------------------------------
 * function rotate() 
 *  Allows to change the source image to the next or last in the list.
 *  Options:
 *    srcimage - defines the image that will be replaced by the others
 *    direction - 1 forward -1 backward
 * --------------------------------------------------------------------*/
function rotate(srcimage,direction)
{
   n=n+direction;
   if (n==allImages) n=0;
   if (n==-1) n=allImages-1;
   document.images[srcimage].src=imgObjects[n].src;
}