var imageFiles_523z_1 = new Array();
imageFiles_523z_1['0'] = new Array ('_images/523z_Mats.gif', '_images/523z_MatsMouseover.gif');

function image_on_523z_1 (position) {
   var doc = eval("document.image523z_1" + position);
   doc.src = imageFiles_523z_1[position][1];
}

function image_off_523z_1 (position) {
   var doc = eval("document.image523z_1" + position);
   doc.src = imageFiles_523z_1[position][0];
}