var imageFiles_4u_397 = new Array();
imageFiles_4u_397['0'] = new Array ('_images/4u_Rheem.gif', '_images/4u_RheemMouseover.gif');

function image_on_4u_397 (position) {
   var doc = eval("document.image4u_397" + position);
   doc.src = imageFiles_4u_397[position][1];
}

function image_off_4u_397 (position) {
   var doc = eval("document.image4u_397" + position);
   doc.src = imageFiles_4u_397[position][0];
}