var imageFiles_28_3 = new Array();
imageFiles_28_3['0'] = new Array ('_images/28_CONTACT_US.gif', '_images/28_CONTACT_USMouseover.gif');

function image_on_28_3 (position) {
   var doc = eval("document.image28_3" + position);
   doc.src = imageFiles_28_3[position][1];
}

function image_off_28_3 (position) {
   var doc = eval("document.image28_3" + position);
   doc.src = imageFiles_28_3[position][0];
}