var imageFiles_w_13 = new Array();
imageFiles_w_13['0'] = new Array ('_images/w_About_Us.gif', '_images/w_About_UsMouseover.gif');
imageFiles_w_13['1'] = new Array ('_images/w_Feedback.gif', '_images/w_FeedbackMouseover.gif');
imageFiles_w_13['2'] = new Array ('_images/w_Contact_Us_.gif', '_images/w_Contact_Us_Mouseover.gif');

function image_on_w_13 (position) {
   var doc = eval("document.imagew_13" + position);
   doc.src = imageFiles_w_13[position][1];
}

function image_off_w_13 (position) {
   var doc = eval("document.imagew_13" + position);
   doc.src = imageFiles_w_13[position][0];
}