var imageFiles_i_27 = new Array();
imageFiles_i_27['0'] = new Array ('_images/i_Commercial.gif', '_images/i_CommercialMouseover.gif');
imageFiles_i_27['1'] = new Array ('_images/i_Residential.gif', '_images/i_ResidentialMouseover.gif');
imageFiles_i_27['2'] = new Array ('_images/i_Institutional.gif', '_images/i_InstitutionalMouseover.gif');

function image_on_i_27 (position) {
   var doc = eval("document.imagei_27" + position);
   doc.src = imageFiles_i_27[position][1];
}

function image_off_i_27 (position) {
   var doc = eval("document.imagei_27" + position);
   doc.src = imageFiles_i_27[position][0];
}