if (document.images) {
btn01a = new Image(120,24);btn01a .src = '/img/btn_home.gif';
btn01b = new Image(120,24);btn01b .src = '/img/btn_home_ov.gif';
btn02a = new Image(120,24);btn02a .src = '/img/btn_profile.gif';
btn02b = new Image(120,24);btn02b .src = '/img/btn_profile_ov.gif';
btn03a = new Image(120,24);btn03a .src = '/img/btn_works.gif';
btn03b = new Image(120,24);btn03b .src = '/img/btn_works_ov.gif';
btn04a = new Image(120,24);btn04a .src = '/img/btn_note.gif';
btn04b = new Image(120,24);btn04b .src = '/img/btn_note_ov.gif';
btn05a = new Image(120,24);btn05a .src = '/img/btn_contact.gif';
btn05b = new Image(120,24);btn05b .src = '/img/btn_contact_ov.gif';
btn06a = new Image(120,24);btn06a .src = '/img/btn_howto.gif';
btn06b = new Image(120,24);btn06b .src = '/img/btn_howto_ov.gif';

mprinta = new Image(131,20);mprinta .src = '/img/btn_mprint.jpg';
mprintb = new Image(131,20);mprintb .src = '/img/btn_mprint_ov.jpg';
pr = new Image(79,20);pra .src = '/img/btn_print.jpg';
pr = new Image(79,20);prb .src = '/img/btn_print_ov.jpg';
wclosea = new Image(79,20);wclosea .src = '/img/btn_close.jpg';
wcloseb = new Image(79,20);wcloseb .src = '/img/btn_close_ov.jpg';

}
function di(id,name){
  if (document.images) {document.images[id].src=eval(name+".src"); }
}