var imageFiles_ag_1 = new Array();
imageFiles_ag_1['0'] = new Array ('_images/ag_Fish.gif', '_images/ag_FishMouseover.gif');

function image_on_ag_1 (position) {
   var doc = eval("document.imageag_1" + position);
   doc.src = imageFiles_ag_1[position][1];
}

function image_off_ag_1 (position) {
   var doc = eval("document.imageag_1" + position);
   doc.src = imageFiles_ag_1[position][0];
}