var imageFiles_1sz_21 = new Array();
imageFiles_1sz_21['0'] = new Array ('_images/1sz_.gif', '_images/1sz_Mouseover.gif');

function image_on_1sz_21 (position) {
   var doc = eval("document.image1sz_21" + position);
   doc.src = imageFiles_1sz_21[position][1];
}

function image_off_1sz_21 (position) {
   var doc = eval("document.image1sz_21" + position);
   doc.src = imageFiles_1sz_21[position][0];
}