var imageFiles_15_49 = new Array();
imageFiles_15_49['0'] = new Array ('_images/15_Puppy_Eats.gif', '_images/15_Puppy_EatsMouseover.gif');

function image_on_15_49 (position) {
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   doc.src = imageFiles_15_49[position][1];
}

function image_off_15_49 (position) {
   var doc = eval("document.image15_49" + position);
   doc.src = imageFiles_15_49[position][0];
}