function validateOnSubmit() {
    var errs=0;
		
     if (!validatePresent(document.forms.loginform.username,  'user_name')) errs += 1;
     if (!validatePresent(document.forms.loginform.password,  'pass_word')) errs += 1;

    return (errs==0);
  };

function validateOnSubmit2() {
    var errs=0;
		
     if (!validatePresent(document.forms.memberdetails.firstname,  'first_name')) errs += 1;
     if (!validatePresent(document.forms.memberdetails.surname,  'sur_name')) errs += 1;
     if (!validatePresent(document.forms.memberdetails.username,  'user_name')) errs += 1;
     if (!validatePresent(document.forms.memberdetails.password,  'pass_word')) errs += 1;

    return (errs==0);
  };