var imageFiles_8upz_4 = new Array();
imageFiles_8upz_4['0'] = new Array ('_images/8upz_Crested_Butte_Mountain.gif', '_images/8upz_Crested_Butte_MountainMouseover.gif');

function image_on_8upz_4 (position) {
   var doc = eval("document.image8upz_4" + position);
   doc.src = imageFiles_8upz_4[position][1];
}

function image_off_8upz_4 (position) {
   var doc = eval("document.image8upz_4" + position);
   doc.src = imageFiles_8upz_4[position][0];
}