var imageFiles_4j_15 = new Array();
imageFiles_4j_15['0'] = new Array ('_images/4j_Contact_Us.gif', '_images/4j_Contact_UsMouseover.gif');

function image_on_4j_15 (position) {
   var doc = eval("document.image4j_15" + position);
   doc.src = imageFiles_4j_15[position][1];
}

function image_off_4j_15 (position) {
   var doc = eval("document.image4j_15" + position);
   doc.src = imageFiles_4j_15[position][0];
}