var imageFiles_4_13 = new Array();
imageFiles_4_13['0'] = new Array ('_images/4_Home.gif', '_images/4_HomeMouseover.gif');
imageFiles_4_13['1'] = new Array ('_images/4_About_Us.gif', '_images/4_About_UsMouseover.gif');
imageFiles_4_13['2'] = new Array ('_images/4_Design_Services.gif', '_images/4_Design_ServicesMouseover.gif');
imageFiles_4_13['3'] = new Array ('_images/4_FAQ.gif', '_images/4_FAQMouseover.gif');
imageFiles_4_13['4'] = new Array ('_images/4_Feedback.gif', '_images/4_FeedbackMouseover.gif');
imageFiles_4_13['5'] = new Array ('_images/4_Contact_Us.gif', '_images/4_Contact_UsMouseover.gif');

function image_on_4_13 (position) {
   var doc = eval("document.image4_13" + position);
   doc.src = imageFiles_4_13[position][1];
}

function image_off_4_13 (position) {
   var doc = eval("document.image4_13" + position);
   doc.src = imageFiles_4_13[position][0];
}