function fetch_object(idname)
{
    var my_obj = document.getElementById(idname);
    return my_obj;
}

function toggle_nav(obj)
{
    for (i = 1; i<= 11; i++  )
    {
        
        var nav_img = fetch_object("nav_" + i);
        var sub_nav = fetch_object("sub_nav_" + i);
        var sub_nav_index =  fetch_object("sub_nav_1");
        sub_nav_index.style.display = "none";
        if (obj == i)
        {
            sub_nav.style.display = "block";
			nav_img.src = "/skin/nav_" + i + "_on.jpg";
            

        }
        else
        {
            sub_nav.style.display = "none";
			nav_img.src = "/skin/nav_" + i + "_off.jpg";
            
        }
    }
}

function GetObj(objName){
	if(document.getElementById){
		return eval('document.getElementById("' + objName + '")');
	}else{
		return eval('document.all.' + objName);
	}
}
function Show_Sub(id_num,num){ //ÉàÇ©¹¦ÄÜ
	for(var i = 0;i <= 9;i++){
		if(GetObj("S_Menu_" + id_num + i)){GetObj("S_Menu_" + id_num + i).className = '';}
		if(GetObj("S_Cont_" + id_num + i)){GetObj("S_Cont_" + id_num + i).style.display = 'none';}
	}
	if(GetObj("S_Menu_" + id_num + num)){GetObj("S_Menu_" + id_num + num).className = 'selectd';}
	if(GetObj("S_Cont_" + id_num + num)){GetObj("S_Cont_" + id_num + num).style.display = 'block';}
}