var imageFiles_hx_21 = new Array();
imageFiles_hx_21['0'] = new Array ('_images/hx_Home___School.gif', '_images/hx_Home___SchoolMouseover.gif');

function image_on_hx_21 (position) {
   var doc = eval("document.imagehx_21" + position);
   doc.src = imageFiles_hx_21[position][1];
}

function image_off_hx_21 (position) {
   var doc = eval("document.imagehx_21" + position);
   doc.src = imageFiles_hx_21[position][0];
}