// Taken from howtocreate.co.uk

// Slightly modded



function getRefToDiv(divID,oDoc) {

  if( document.getElementById ) {

    return document.getElementById(divID); }

  if( document.all ) {

    return document.all[divID]; }

  if( !oDoc ) { oDoc = document; }

  if( document.layers ) {

    if( oDoc.layers[divID] ) { return oDoc.layers[divID]; } else {

      //repeatedly run through all child layers

      for( var x = 0, y; !y && x < oDoc.layers.length; x++ ) {

        //on success, return that layer, else return nothing

        y = getRefToDiv(divID,oDoc.layers[x].document); }

    return y; } }

  return false;

}



function showDiv(divID_as_a_string) {

  //get a reference as above ...

  myReference = getRefToDiv(divID_as_a_string);

  if( !myReference ) {

    window.alert('Nothing works in this browser');

    return; //don't go any further

  }

  //now we have a reference to it

  if( myReference.style ) {

    //DOM & proprietary DOM

//    myReference.style.visibility = 'visible';

    myReference.style.display = 'block';

  } else {

    //layers syntax

    myReference.visibility = 'show';

  }

}



function hideDiv(divID_as_a_string) {

  //get a reference as above ...

  myReference = getRefToDiv(divID_as_a_string);

  if( !myReference ) {

    window.alert('Nothing works in this browser');

    return; //don't go any further

  }

  //now we have a reference to it

  if( myReference.style ) {

    //DOM & proprietary DOM

//    myReference.style.visibility = 'visible';

    myReference.style.display = 'none';

  } else {

    //layers syntax

    myReference.visibility = 'hidden';

  }

}