var refreshTimeout = 120000;
var stopRefreshing = false;

function startRefresh()
{
    stopRefreshing = false;
   	setTimeout("refreshPage()", refreshTimeout);
}

function refreshPage()
{
    if (!stopRefreshing)
    {
        location.reload();
    
        setTimeout("refreshPage()", refreshTimeout);
    }
}

function stopRefresh()
{
    stopRefreshing = true;
}