var imageFiles_bv_13 = new Array();
imageFiles_bv_13['0'] = new Array ('_images/bv_Melbourne.gif', '_images/bv_MelbourneMouseover.gif');

function image_on_bv_13 (position) {
   var doc = eval("document.imagebv_13" + position);
   doc.src = imageFiles_bv_13[position][1];
}

function image_off_bv_13 (position) {
   var doc = eval("document.imagebv_13" + position);
   doc.src = imageFiles_bv_13[position][0];
}