var imageFiles_60x_1 = new Array();
imageFiles_60x_1['0'] = new Array ('_images/60x_Cascade_Team_Penning.gif', '_images/60x_Cascade_Team_PenningMouseover.gif');
imageFiles_60x_1['1'] = new Array ('_images/60x_Willamette_Valley_TP.gif', '_images/60x_Willamette_Valley_TPMouseover.gif');
imageFiles_60x_1['2'] = new Array ('_images/60x_Umpqua_Valley_TP.gif', '_images/60x_Umpqua_Valley_TPMouseover.gif');
imageFiles_60x_1['3'] = new Array ('_images/60x_Yakima_Valley_TP.gif', '_images/60x_Yakima_Valley_TPMouseover.gif');

function image_on_60x_1 (position) {
   var doc = eval("document.image60x_1" + position);
   doc.src = imageFiles_60x_1[position][1];
}

function image_off_60x_1 (position) {
   var doc = eval("document.image60x_1" + position);
   doc.src = imageFiles_60x_1[position][0];
}