var imageFiles_s_13 = new Array();
imageFiles_s_13['0'] = new Array ('_images/s_Home.gif', '_images/s_HomeMouseover.gif');

function image_on_s_13 (position) {
   var doc = eval("document.images_13" + position);
   doc.src = imageFiles_s_13[position][1];
}

function image_off_s_13 (position) {
   var doc = eval("document.images_13" + position);
   doc.src = imageFiles_s_13[position][0];
}