var imageFiles_11_4 = new Array();
imageFiles_11_4['0'] = new Array ('_images/11_Home.gif', '_images/11_HomeMouseover.gif');
imageFiles_11_4['1'] = new Array ('_images/11_About_Us.gif', '_images/11_About_UsMouseover.gif');
imageFiles_11_4['2'] = new Array ('_images/11_Products.gif', '_images/11_ProductsMouseover.gif');
imageFiles_11_4['3'] = new Array ('_images/11_RAMPS.gif', '_images/11_RAMPSMouseover.gif');
imageFiles_11_4['4'] = new Array ('_images/11_More_to_come___.gif', '_images/11_More_to_come___Mouseover.gif');

function image_on_11_4 (position) {
   var doc = eval("document.image11_4" + position);
   doc.src = imageFiles_11_4[position][1];
}

function image_off_11_4 (position) {
   var doc = eval("document.image11_4" + position);
   doc.src = imageFiles_11_4[position][0];
}