var panels = new Array('panel1', 'panel2', 'panel3', 'panel4', 'panel5', 'panel6', 'panel7');
      var selectedTab = null;
      function showPanel(tab, name) {
        if (selectedTab) {
          selectedTab.style.backgroundColor = '';
          selectedTab.style.paddingTop = '';
          selectedTab.style.paddingBottom = '';
        }
        selectedTab = tab;
        selectedTab.style.backgroundColor = '#e0f4b5';
        selectedTab.style.paddingTop = '6px';
        for(i = 0; i < panels.length; i++) {
          document.getElementById(panels[i]).style.display = (name == panels[i]) ? 'block':'none';
        }
        return false;
      }