function checkForm(frm, arr)
{
  el = null;
  err = '';
  for(i in arr)
  {
    switch(frm.elements[i].type)
    {
      case 'text':
      case 'password':
      case 'textarea':
        if (frm.elements[i].value == '')
        {
          if (!el) el = frm.elements[i];
          err += arr[i] + "\n";
        }
    	break;
      case 'select-one':
        if (frm.elements[i].selectedIndex == 0)
        {
          if (!el) el = frm.elements[i];
          err += arr[i] + "\n";
        }
    	break;
    }
  }
  if (err == '') return true;
  else
  {
    el.focus();
    alert("Пожалуйста заполните обязательные поля:\n-----------------------------------\n" + err + "-----------------------------------");
    return false;
  }
}
var lastAction = null;
var lastActionName = null;
var lastId = null;
var lastVal = null;