function Check501()
{
  document.frmSearch501.QueryKey.value=KillSpace(document.frmSearch501.QueryKey.value);
  if(document.frmSearch501.QueryKey.value.length == 0)
    {
      alert('\nÇëÄúÊäÈëËÑË÷¹Ø¼ü×Ö!');
      return false;
    }

  return true;
}

function KillSpace(x){
  while((x.length>0) && (x.charAt(0)==' '))
  x = x.substring(1,x.length)
  while((x.length>0) && (x.charAt(x.length-1)==' '))
  x = x.substring(0,x.length-1)
  return x
}