function checkradio(){
  if(document.main2.usertype[0].checked || document.main2.usertype[1].checked){
    if (checkname()) return true; else return false;
  }else{
    alert("You must select a usertype.");
	return false;
  }
}
function checkname(){
  if(document.main2.email.value == ""){
	window.close();
	return false;
  }else{
	subm();
	return true;
  }
}
function subm()
{
window.blur();
}