function activateTab(tabID) {
        var tab = document.getElementById('InfoTab' + tabID);
        var details = document.getElementById('InfoDetails' + tabID);
        currentTab.className = "infotabinactive";
        tab.className = "infotabactive";
        currentDetails.className = "detailshidden";
        details.className = "detailsshow";
        currentTab = tab;
        currentDetails = details;
   }