function onSubmitCheck(fobj, check_fields)
{
	var _passed = true;
	
	for (i=0;i<fobj.elements.length;i++)
		if (check_fields[fobj.elements[i].name])
			if( !check_fields[fobj.elements[i].name].test(fobj.elements[i].value) )
			{
				_passed=false;
				fobj.elements[i].parentNode.className = 'error';
			} 
			else
			{
				fobj.elements[i].parentNode.className = '';
			}
	
	if (!_passed)
		alert(alert_msg);
	
	return _passed;
}