function switchImage(imgName, imgSrc) 
{
  if (document.images)
  {
    if (imgSrc != "none")
    {
      document.images[imgName].src = imgSrc;
    }
  }
}



var count_images = 0;
var images_src = [];

function preload_images(pliki) {
	for (i = 0; i < pliki.length; i++) {
		count_images++;
		images_src[count_images] = new Image();
		images_src[count_images].src = pliki[i];
	}	
};