var imageFiles_pp_13 = new Array();
imageFiles_pp_13['0'] = new Array ('_images/pp_Roofwork.gif', '_images/pp_RoofworkMouseover.gif');
imageFiles_pp_13['1'] = new Array ('_images/pp_Stonework.gif', '_images/pp_StoneworkMouseover.gif');
imageFiles_pp_13['2'] = new Array ('_images/pp_Events.gif', '_images/pp_EventsMouseover.gif');
imageFiles_pp_13['3'] = new Array ('_images/pp_Feedback.gif', '_images/pp_FeedbackMouseover.gif');
imageFiles_pp_13['4'] = new Array ('_images/pp_Contact.gif', '_images/pp_ContactMouseover.gif');

function image_on_pp_13 (position) {
   var doc = eval("document.imagepp_13" + position);
   doc.src = imageFiles_pp_13[position][1];
}

function image_off_pp_13 (position) {
   var doc = eval("document.imagepp_13" + position);
   doc.src = imageFiles_pp_13[position][0];
}