var imageFiles_3_1 = new Array();
imageFiles_3_1['0'] = new Array ('_images/3_Lap_Pool.gif', '_images/3_Lap_PoolMouseover.gif');

function image_on_3_1 (position) {
   var doc = eval("document.image3_1" + position);
   doc.src = imageFiles_3_1[position][1];
}

function image_off_3_1 (position) {
   var doc = eval("document.image3_1" + position);
   doc.src = imageFiles_3_1[position][0];
}