function getCookie(c_name)
    {
        if (document.cookie.length>0)
          {
          c_start=document.cookie.indexOf(c_name + "=");
          if (c_start!=-1)
            {
            c_start=c_start + c_name.length+1;
            c_end=document.cookie.indexOf(";",c_start);
            if (c_end==-1) c_end=document.cookie.length;
            return unescape(document.cookie.substring(c_start,c_end));
            }
          }
        return "";
    }
    
    function setCookie(c_name,value,expiredays)
    {
        var exdate=new Date();
        exdate.setDate(exdate.getDate()+expiredays);
        document.cookie=c_name+ "=" +escape(value)+
        ((expiredays==null) ? "" : ";expires="+exdate.toGMTString())+';path=/';
    }

    function checkCookie()
    {
        menu_position=getCookie('menu_position');
        if (menu_position!=null && menu_position!="")
        {
            return menu_position;
        }
        else
        {
            //setCookie('menu_position',3,1);
            return 0;
        }
    }