validating password and confirm password using javascript

<SCRIPT LANGUAGE="JavaScript">
  function validate(form) {
  pw1 = form.password.value;
  pw2 = form.password1.value;

  if (pw1 != pw2) {
  alert ("\nYou did not enter the same new password twice. Please re-enter your password.");
   document.getElementById("password").value="";
    document.getElementById("password1").value="";
   document.getElementById("password").focus();
  return false;
  }
  else return true;
  }

</script>