function popup(pagina) {
var  popup = window.open("", "popup",'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=750,height=480');
popup.location = pagina;
popup.focus();
}

function getsearch ( selectedtype )
{
  document.sossearch.searchtype.value = selectedtype ;
  document.sossearch.submit() ;
}