var imageFiles_4_55 = new Array();
imageFiles_4_55['0'] = new Array ('_images/4_Home.gif', '_images/4_HomeMouseover.gif');
imageFiles_4_55['1'] = new Array ('_images/4_FAQ.gif', '_images/4_FAQMouseover.gif');
imageFiles_4_55['2'] = new Array ('_images/4_Feedback.gif', '_images/4_FeedbackMouseover.gif');

function image_on_4_55 (position) {
   var doc = eval("document.image4_55" + position);
   doc.src = imageFiles_4_55[position][1];
}

function image_off_4_55 (position) {
   var doc = eval("document.image4_55" + position);
   doc.src = imageFiles_4_55[position][0];
}