function setSearchArea() {

    var myhost = window.location.hostname;
    var mysite = myhost.split(".");

    switch (mysite[0]) {
        case "www":
          var myselname = "sp1";
        break;
        case "software":
          var myselname = "sp2";
        break;
        case "sicurezza":
          var myselname = "sp3";
        break;
        case "hardware":
          var myselname = "sp4";
        break;
        default:
          var myselname = "sp00";
        break;
    }
    document.getElementById("search_area").name = myselname;
}

function setSearchArea_full()
{
	var el = document.getElementById("search_area");
	var fd = document.getElementById("search-field");
	var item = el.options[ el.selectedIndex ];
	switch( item.value )
	{
		case "off":
			fd.name = "sp00";
			fd.value = "off";
			break;
		default:
			fd.name = item.value;
			fd.value = "on";
	}
}