var imageFiles_6y_7 = new Array();
imageFiles_6y_7['0'] = new Array ('_images/6y_DA_History.gif', '_images/6y_DA_HistoryMouseover.gif');
imageFiles_6y_7['1'] = new Array ('_images/6y_DA_Mission.gif', '_images/6y_DA_MissionMouseover.gif');
imageFiles_6y_7['2'] = new Array ('_images/6y_DA_Sponsors.gif', '_images/6y_DA_SponsorsMouseover.gif');

function image_on_6y_7 (position) {
   var doc = eval("document.image6y_7" + position);
   doc.src = imageFiles_6y_7[position][1];
}

function image_off_6y_7 (position) {
   var doc = eval("document.image6y_7" + position);
   doc.src = imageFiles_6y_7[position][0];
}