var imageFiles_3r_4 = new Array();
imageFiles_3r_4['0'] = new Array ('_images/3r_PDKS.gif', '_images/3r_PDKSMouseover.gif');

function image_on_3r_4 (position) {
   var doc = eval("document.image3r_4" + position);
   doc.src = imageFiles_3r_4[position][1];
}

function image_off_3r_4 (position) {
   var doc = eval("document.image3r_4" + position);
   doc.src = imageFiles_3r_4[position][0];
}