var WarnEmailE = ' Please enter your email.';
var WarnEmailGB = 'ÇëÊäÈëÄãµÄµçÓʵØÖ·';
var WarnEmailB5 = '½Ð¿é¤J§Aªº¹q¶l¦a§}';

function validateComplete(formObj, lang)
{
  if (emptyField(formObj.email))
      {
        if (lang == 'B5')
        {  alert(WarnEmailB5 + WarnEmailE); }
        else if (lang == 'GB')
        {  alert(WarnEmailGB + WarnEmailE); }
        else
        {  alert(WarnEmailE); }

        formObj.email.focus();
      }
  else return true;

  return false;
}

function emptyField(textObj)
{
  if (textObj.value.length == 0) return true;
  for (var i=0; i<textObj.value.length; ++i)
  {
     var ch = textObj.value.charAt(i);
     if (ch != ' ' && ch != '\t') return false;
  }
  return true;
}