var imageFiles_ui_13 = new Array();
imageFiles_ui_13['0'] = new Array ('_images/ui_Back.gif', '_images/ui_BackMouseover.gif');

function image_on_ui_13 (position) {
   var doc = eval("document.imageui_13" + position);
   doc.src = imageFiles_ui_13[position][1];
}

function image_off_ui_13 (position) {
   var doc = eval("document.imageui_13" + position);
   doc.src = imageFiles_ui_13[position][0];
}