var imageFiles_4c_15 = new Array();
imageFiles_4c_15['0'] = new Array ('_images/4c_Home.gif', '_images/4c_HomeMouseover.gif');

function image_on_4c_15 (position) {
   var doc = eval("document.image4c_15" + position);
   doc.src = imageFiles_4c_15[position][1];
}

function image_off_4c_15 (position) {
   var doc = eval("document.image4c_15" + position);
   doc.src = imageFiles_4c_15[position][0];
}