if (document.images) {
hom_on = new Image();	hom_on.src = "images/on_home.gif";
hom_off = new Image();	hom_off.src = "images/off_home.gif";
tea_on = new Image();	tea_on.src = "images/on_team.gif";
tea_off = new Image();	tea_off.src = "images/off_team.gif";
ser_on = new Image();	ser_on.src = "images/on_services.gif";
ser_off = new Image();	ser_off.src = "images/off_services.gif";
cli_on = new Image();	cli_on.src = "images/on_clients.gif";
cli_off = new Image();	cli_off.src = "images/off_clients.gif";
con_on = new Image();	con_on.src = "images/on_contact.gif";
con_off = new Image();	con_off.src = "images/off_contact.gif";
}
function swapem(sname,rname) {
sname.src = rname.src;
}