var imageFiles_z6_19 = new Array();
imageFiles_z6_19['0'] = new Array ('_images/z6_Home.gif', '_images/z6_HomeMouseover.gif');
imageFiles_z6_19['1'] = new Array ('_images/z6_Training_System.gif', '_images/z6_Training_SystemMouseover.gif');

function image_on_z6_19 (position) {
   var doc = eval("document.imagez6_19" + position);
   doc.src = imageFiles_z6_19[position][1];
}

function image_off_z6_19 (position) {
   var doc = eval("document.imagez6_19" + position);
   doc.src = imageFiles_z6_19[position][0];
}