var imageFiles_tl_19 = new Array();
imageFiles_tl_19['0'] = new Array ('_images/tl_Crystal.gif', '_images/tl_CrystalMouseover.gif');

function image_on_tl_19 (position) {
   var doc = eval("document.imagetl_19" + position);
   doc.src = imageFiles_tl_19[position][1];
}

function image_off_tl_19 (position) {
   var doc = eval("document.imagetl_19" + position);
   doc.src = imageFiles_tl_19[position][0];
}