var imageFiles_3g_13 = new Array();
imageFiles_3g_13['0'] = new Array ('_images/3g_Information.gif', '_images/3g_InformationMouseover.gif');

function image_on_3g_13 (position) {
   var doc = eval("document.image3g_13" + position);
   doc.src = imageFiles_3g_13[position][1];
}

function image_off_3g_13 (position) {
   var doc = eval("document.image3g_13" + position);
   doc.src = imageFiles_3g_13[position][0];
}