var imageFiles_45_15 = new Array();
imageFiles_45_15['0'] = new Array ('_images/45_.gif', '_images/45_Mouseover.gif');

function image_on_45_15 (position) {
   var doc = eval("document.image45_15" + position);
   doc.src = imageFiles_45_15[position][1];
}

function image_off_45_15 (position) {
   var doc = eval("document.image45_15" + position);
   doc.src = imageFiles_45_15[position][0];
}