var g_selectedtab = null;
    var g_selectedcontainer = null;
    
    function selectTab(obj, displaycontainer)
    {
        if(obj == null)
        {
            obj = document.getElementsByName(displaycontainer + "link")[0];
        }
        if(obj != null)
        {
            obj.parentNode.className="selected";                
        }
        if(g_selectedtab && g_selectedtab != obj.parentNode)
        {
            g_selectedtab.className="";
        }        
        if(g_selectedcontainer)
        {
            g_selectedcontainer.style["display"] = 'none';
        }
       
        
        var c = document.getElementById(displaycontainer);                
        if(c)
        {        
            c.style["display"] = '';
        }
        
        g_selectedtab = obj.parentNode;
        g_selectedcontainer = c;
        document.forms[0].elements['selectedtab'].value = displaycontainer;
    }