var imageFiles_4v_397 = new Array();
imageFiles_4v_397['0'] = new Array ('_images/4v_Ruud_.gif', '_images/4v_Ruud_Mouseover.gif');

function image_on_4v_397 (position) {
   var doc = eval("document.image4v_397" + position);
   doc.src = imageFiles_4v_397[position][1];
}

function image_off_4v_397 (position) {
   var doc = eval("document.image4v_397" + position);
   doc.src = imageFiles_4v_397[position][0];
}