var currentActivity = 1;
var maxActivities = 5;
var activityRefresh;
$(window).load(function(){
    showActivity(1);
});
showActivity = function(id) {
    $("#activityMessages .activity").css('display', 'none');
    currentActivity = id;
    $("#activity"+currentActivity).fadeIn('fast');
    currentActivity++;
    if ( currentActivity > maxActivities ) {
        currentActivity = 1;
    }
    activityRefresh = window.setTimeout(function() {
        showActivity(currentActivity);
    }, 5000);
}
$("#expandActivity").click(function(){
    var icon = $("#expandActivity");
    var show = (icon.html() == '\u2191' || icon.html() == '↑') ? true : false;
    if ( show ) {
        $("#activityMessages .activity").css('display', 'block');
        clearTimeout(activityRefresh);
        $("#activityBar").animate({
            height: "100px"
        }, 500, function(){
            icon.html('↓');
        } );
    } else {
        $("#activityMessages .activity").css('display', 'none');
        showActivity(1);
        $("#activityBar").animate({
            height: "30px"
        }, 500, function(){
            icon.html('↑');
        } );
    }
});