var imageFiles_bx_15 = new Array();
imageFiles_bx_15['0'] = new Array ('_images/bx_Brisbane.gif', '_images/bx_BrisbaneMouseover.gif');

function image_on_bx_15 (position) {
   var doc = eval("document.imagebx_15" + position);
   doc.src = imageFiles_bx_15[position][1];
}

function image_off_bx_15 (position) {
   var doc = eval("document.imagebx_15" + position);
   doc.src = imageFiles_bx_15[position][0];
}