var panels = new Array('Ford', 'Lincoln', 'Mercury');

var selectedTab = null;
    function showPanel(tab, name)
      {
        if (selectedTab) 
        {
          selectedTab.style.backgroundColor = '';
          selectedTab.style.paddingTop = '';
          selectedTab.style.marginTop = '4px';
        }
        selectedTab = tab;
        selectedTab.style.backgroundColor = 'white';
        selectedTab.style.paddingTop = '6px';
        selectedTab.style.marginTop = '0px';        
        for(i = 0; i < panels.length; i++)
        {
          document.getElementById(panels[i]).style.display = (name == panels[i]) ? 'block':'none';
        }
        return false;
   }