var imageFiles_4l_304 = new Array();
imageFiles_4l_304['0'] = new Array ('_images/4l_Carrier.gif', '_images/4l_CarrierMouseover.gif');

function image_on_4l_304 (position) {
   var doc = eval("document.image4l_304" + position);
   doc.src = imageFiles_4l_304[position][1];
}

function image_off_4l_304 (position) {
   var doc = eval("document.image4l_304" + position);
   doc.src = imageFiles_4l_304[position][0];
}