var imageFiles_75_4 = new Array();
imageFiles_75_4['0'] = new Array ('_images/75_Filtration.gif', '_images/75_FiltrationMouseover.gif');
imageFiles_75_4['1'] = new Array ('_images/75_Supplies.gif', '_images/75_SuppliesMouseover.gif');
imageFiles_75_4['2'] = new Array ('_images/75_Services.gif', '_images/75_ServicesMouseover.gif');
imageFiles_75_4['3'] = new Array ('_images/75_Boilers.gif', '_images/75_BoilersMouseover.gif');
imageFiles_75_4['4'] = new Array ('_images/75_Bathrooms.gif', '_images/75_BathroomsMouseover.gif');
imageFiles_75_4['5'] = new Array ('_images/75_Kitchens.gif', '_images/75_KitchensMouseover.gif');

function image_on_75_4 (position) {
   var doc = eval("document.image75_4" + position);
   doc.src = imageFiles_75_4[position][1];
}

function image_off_75_4 (position) {
   var doc = eval("document.image75_4" + position);
   doc.src = imageFiles_75_4[position][0];
}