var imageFiles_ai_13 = new Array();
imageFiles_ai_13['0'] = new Array ('_images/ai_Our_Staff.gif', '_images/ai_Our_StaffMouseover.gif');

function image_on_ai_13 (position) {
   var doc = eval("document.imageai_13" + position);
   doc.src = imageFiles_ai_13[position][1];
}

function image_off_ai_13 (position) {
   var doc = eval("document.imageai_13" + position);
   doc.src = imageFiles_ai_13[position][0];
}