var imageFiles_2y3_1 = new Array();
imageFiles_2y3_1['0'] = new Array ('_images/2y3_Theo_s_Metro_Menu.gif', '_images/2y3_Theo_s_Metro_MenuMouseover.gif');

function image_on_2y3_1 (position) {
   var doc = eval("document.image2y3_1" + position);
   doc.src = imageFiles_2y3_1[position][1];
}

function image_off_2y3_1 (position) {
   var doc = eval("document.image2y3_1" + position);
   doc.src = imageFiles_2y3_1[position][0];
}