var imageFiles_g_13 = new Array();
imageFiles_g_13['0'] = new Array ('_images/g_Contact_Us.gif', '_images/g_Contact_UsMouseover.gif');

function image_on_g_13 (position) {
   var doc = eval("document.imageg_13" + position);
   doc.src = imageFiles_g_13[position][1];
}

function image_off_g_13 (position) {
   var doc = eval("document.imageg_13" + position);
   doc.src = imageFiles_g_13[position][0];
}