function onLoadUpdater(showNewTarget)
{
    onAir(showNewTarget);
    window.setInterval("onAir('"+showNewTarget+"')", 20000);
};

function onAir(showNewTarget)
{
    if(showNewTarget == 'true')
    {
        Ajax.updater('onair_div' ,''+ baseUrl +'?_event_=ajaxOnAir&showNewTarget=true','get'); 
    }
    else
    {
        Ajax.updater('onair_div' ,''+ baseUrl +'?_event_=ajaxOnAir','get'); 
    }
    
}