// -------------------------------------------------------------------------
// --- Dependencies:
// -------------------------------------------------------------------------

// This program requires that the following program files be preloaded before loading this program file:
//     > BrowserDetectLite.js


// -------------------------------------------------------------------------
// Prerequisite Initialization Calls
// -------------------------------------------------------------------------

// -------------------------------------------------------------------------
// Call Browser detection information script and store data into brwser object

  var brwsr = new BrowserDetectLite();


// -------------------------------------------------------------------------
// Define global variables:

// Browser Type and related type-specific variables
  var WC3DOM1 = false;
  var IEDOCALL = false;

// Other
  var lastItemId = "mmaudiohome";

// -------------------------------------------------------------------------
// FUNCTION DECLARATIONS - 
// For functions activated from user initialized events
// -------------------------------------------------------------------------

// -------------------------------------------------------------------------
// Change the state of the link selected - onclick event handler
// -------------------------------------------------------------------------
  function changeState (thisItemId) {

    if (lastItemId != thisItemId) {
      if (WC3DOM1) {
        document.getElementById(lastItemId).className = "linkinactive";
        document.getElementById(thisItemId).className = "linkactive";
      }
      else {
        if (IEDOCALL) {
          document.all[lastItemId].className = "linkinactive";
          document.all[thisItemId].className = "linkactive";
        }
      }
      lastItemId = thisItemId;
    }
  }

// -------------------------------------------------------------------------
// BEGIN: Main Line Processing - Runs as soon as the script file has been read
// -------------------------------------------------------------------------

  // Determine Element Access Methods (W3C DOM standard method or IE4+ method or both)
  if (brwsr.isDOM1) {  
    WC3DOM1 = true;
  }
  if (document.all) {
    IEDOCALL = true;
  }

// -------------------------------------------------------------------------
// END: Main Line Processing
// -------------------------------------------------------------------------