var currentActive = 'home';


function track(id) {
        if ( pageTracker != null ) pageTracker._trackPageview(id);  
}



function toggleContent(id) {
    if ( id == currentActive ) {
        // no change 
        return false;
    }

    // track information what people watched/clicked
    if ( pageTracker != null ) pageTracker._trackPageview("/index.html#" + id);  

    // hide old element 
    var oldDiv = document.getElementById(currentActive);
    $(oldDiv).animate({ height: 'hide', opacity: 'hide' }, 'normal');
    var newDiv = document.getElementById(id);
    $(newDiv).animate({ height: 'show', opacity: 'show' }, 'normal');
                          
    currentActive = id;

    return true;
}


function seq__toggleContent(id) {
    if ( id == currentActive ) {
        // no change 
        return false;
    }
    
    // hide old element 
    var oldDiv = document.getElementById(currentActive);
    $(oldDiv).animate({ height: 'hide', opacity: 'hide' }, 'normal',
                      function () {
                          // show new div 
                          var newDiv = document.getElementById(id);
                          $(newDiv).animate({ height: 'show', opacity: 'show' }, 'normal');
                          
                          currentActive = id;
                      });
}


function hideDiv(id) {
    var myDiv = document.getElementById(id);
    $(myDiv).animate({ height: 'hide', opacity: 'hide' }, 'normal');
}


function showDiv(id) {
    var myDiv = document.getElementById(id);
    $(myDiv).animate({ height: 'show', opacity: 'show' }, 'normal');
}

function toggleDiv(id) {
    var myDiv = document.getElementById(id);
    if ( myDiv.style.display == "block") {
        hideDiv(id);
    } else {
        showDiv(id);
        // track information what people watched/clicked
        if ( pageTracker != null ) pageTracker._trackPageview("/index.html#" + id);  
    }
    return true;
}