var imageFiles_3_1 = new Array();
imageFiles_3_1['0'] = new Array ('_images/3_Home.gif', '_images/3_HomeMouseover.gif');
imageFiles_3_1['1'] = new Array ('_images/3_About_Us.gif', '_images/3_About_UsMouseover.gif');
imageFiles_3_1['2'] = new Array ('_images/3_Our_Services.gif', '_images/3_Our_ServicesMouseover.gif');
imageFiles_3_1['3'] = new Array ('_images/3_Photo_Gallery.gif', '_images/3_Photo_GalleryMouseover.gif');
imageFiles_3_1['4'] = new Array ('_images/3_Contact_Us.gif', '_images/3_Contact_UsMouseover.gif');

function image_on_3_1 (position) {
   var doc = eval("document.image3_1" + position);
   doc.src = imageFiles_3_1[position][1];
}

function image_off_3_1 (position) {
   var doc = eval("document.image3_1" + position);
   doc.src = imageFiles_3_1[position][0];
}