var imageFiles_3a_7 = new Array();
imageFiles_3a_7['0'] = new Array ('_images/3a_Home_Page.gif', '_images/3a_Home_PageMouseover.gif');
imageFiles_3a_7['1'] = new Array ('_images/3a_About_Us.gif', '_images/3a_About_UsMouseover.gif');
imageFiles_3a_7['2'] = new Array ('_images/3a_Contact_Us.gif', '_images/3a_Contact_UsMouseover.gif');

function image_on_3a_7 (position) {
   var doc = eval("document.image3a_7" + position);
   doc.src = imageFiles_3a_7[position][1];
}

function image_off_3a_7 (position) {
   var doc = eval("document.image3a_7" + position);
   doc.src = imageFiles_3a_7[position][0];
}