var imageFiles_20_5 = new Array();
imageFiles_20_5['0'] = new Array ('_images/20_Contact_Us___Map.gif', '_images/20_Contact_Us___MapMouseover.gif');

function image_on_20_5 (position) {
   var doc = eval("document.image20_5" + position);
   doc.src = imageFiles_20_5[position][1];
}

function image_off_20_5 (position) {
   var doc = eval("document.image20_5" + position);
   doc.src = imageFiles_20_5[position][0];
}