var imageFiles_ta_4 = new Array();
imageFiles_ta_4['0'] = new Array ('_images/ta_Hope_Center_Home.gif', '_images/ta_Hope_Center_HomeMouseover.gif');
imageFiles_ta_4['1'] = new Array ('_images/ta_Contact_Us.gif', '_images/ta_Contact_UsMouseover.gif');

function image_on_ta_4 (position) {
   var doc = eval("document.imageta_4" + position);
   doc.src = imageFiles_ta_4[position][1];
}

function image_off_ta_4 (position) {
   var doc = eval("document.imageta_4" + position);
   doc.src = imageFiles_ta_4[position][0];
}