var initialtab = [1, "sc1"]

    var previoustab = "";
    var intv;
    function expandcontent(cid, aobject)
        {
        stopTimer();

        highlighttab(aobject)

        if (previoustab != "")
        document.getElementById(previoustab).style.display = "none"
        document.getElementById(cid).style.display = "block"
        previoustab = cid
        
        }

    function highlighttab(aobject)
        {
        stopTimer();

       // if (tabobjlinks != "object")
            collectddimagetabs()
 
        for (i = 0; i < tabobjlinks.length; i++)
            tabobjlinks[i].style.display="none";
        }

    function collectddimagetabs()
        {
        var tabobj = document.getElementById("tbcontent")
        tabobjlinks = tabobj.getElementsByTagName("div")
        //alert(tabobjlinks);
        }

    function do_onload()
        {
        collectddimagetabs()
        expandcontent(initialtab[1], tabobjlinks[initialtab[0] - 1])
        }

    function startTimer()
        {
        intv = setTimeout("expandcontent(initialtab[1], tabobjlinks[initialtab[0]-1])", 2);
        }

    function stopTimer()
        {
        clearTimeout(intv);
        }