function addFavorite()
{
   	if (window.sidebar)
	{
	    window.sidebar.addPanel(document.title, location.href, "")
	}
	else if(window.external)
	{
	    window.external.AddFavorite(location.href,document.title);
	}
}

function bt(obj,after) 
{
        if (obj.filters)
        {
            obj.filters.blendTrans.stop(); 
            obj.filters.blendTrans.Apply();
            obj.filters.blendTrans.Play();
        }
        obj.src= after;
}

function btTab(obj,after) 
{
    document.getElementById("tab1").src = "/img/tab1_news_o.jpg";
    document.getElementById("tab2").src = "/img/tab2_column_o.jpg";
    document.getElementById("tab3").src = "/img/tab3_qna_o.jpg";
    obj.src= after;
}

function toggleTab(obj)
{
    document.getElementById("spn1").style.display="none";
    document.getElementById("spn2").style.display="none";
    document.getElementById("spn3").style.display="none";
    document.getElementById("spn4").style.display="none";
	document.getElementById("spn5").style.display="none";
	document.getElementById("spn6").style.display="none";
    document.getElementById(obj).style.display="";
}

function showButton(obj)
{
    document.getElementById(obj).style.display="";
}