function showPlagin(idno){   
    pc = ('PlagClose' + (idno));   
    po = ('PlagOpen' + (idno));   
    if( document.getElementById(pc).style.display == "none" ) {   
      document.getElementById(pc).style.display = "block";   
      document.getElementById(po).style.display = "none";   
    }   
    else {   
      document.getElementById(pc).style.display = "none";   
      document.getElementById(po).style.display = "block";   
    }   
  }