var imageFiles_a_15 = new Array();
imageFiles_a_15['0'] = new Array ('_images/a_Home.gif', '_images/a_HomeMouseover.gif');
imageFiles_a_15['1'] = new Array ('_images/a_About_Us.gif', '_images/a_About_UsMouseover.gif');
imageFiles_a_15['2'] = new Array ('_images/a_Services.gif', '_images/a_ServicesMouseover.gif');
imageFiles_a_15['3'] = new Array ('_images/a_Insulation.gif', '_images/a_InsulationMouseover.gif');
imageFiles_a_15['4'] = new Array ('_images/a_Windows.gif', '_images/a_WindowsMouseover.gif');
imageFiles_a_15['5'] = new Array ('_images/a_Links.gif', '_images/a_LinksMouseover.gif');
imageFiles_a_15['6'] = new Array ('_images/a_Site_Map.gif', '_images/a_Site_MapMouseover.gif');
imageFiles_a_15['7'] = new Array ('_images/a_Contact_Us.gif', '_images/a_Contact_UsMouseover.gif');
imageFiles_a_15['8'] = new Array ('_images/a_Request_Form.gif', '_images/a_Request_FormMouseover.gif');

function image_on_a_15 (position) {
   var doc = eval("document.imagea_15" + position);
   doc.src = imageFiles_a_15[position][1];
}

function image_off_a_15 (position) {
   var doc = eval("document.imagea_15" + position);
   doc.src = imageFiles_a_15[position][0];
}