var imageFiles_5y_3 = new Array();
imageFiles_5y_3['0'] = new Array ('_images/5y_CONTACT_US.gif', '_images/5y_CONTACT_USMouseover.gif');

function image_on_5y_3 (position) {
   var doc = eval("document.image5y_3" + position);
   doc.src = imageFiles_5y_3[position][1];
}

function image_off_5y_3 (position) {
   var doc = eval("document.image5y_3" + position);
   doc.src = imageFiles_5y_3[position][0];
}