var agt = navigator.userAgent.toLowerCase();
        var is_major = parseInt(navigator.appVersion);
        var is_nav = ((agt.indexOf('mozilla') != -1) && (agt.indexOf('spoofer') == -1) && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera') == -1) && (agt.indexOf('webtv') == -1));
        var is_nav4up = (is_nav && (is_major >= 4));
        var is_ie = (agt.indexOf("msie") != -1);
        var is_ie3  = (is_ie && (is_major < 4));
        var is_ie4  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5") == -1) && (agt.indexOf("msie 6") == -1));
        var is_ie4up = (is_ie && (is_major >= 4));
        var is_ie5up  = (is_ie  && !is_ie3 && !is_ie4);
        var is_mac = (agt.indexOf("mac") != -1);
        var is_gecko = (agt.indexOf("gecko") != -1);

        function grabObject (id) {
                if (is_ie4) {
                        var view = eval(id);
                }
                if (is_ie5up || is_gecko) {
                        var view = document.getElementById(id);
                }
                return view;
        }

        function show_hide(id) {
                if(is_ie4up || is_gecko) {
                        var hdn_div = grabObject('hdn'+id);
                        //var shdn_span = grabObject('shdn'+id);
                        //var xpand_img = grabObject('img'+id);
                        if(hdn_div.style.display == 'block') {
                                hdn_div.style.display = 'none';
                                //shdn_span.innerHTML = '<span class="smallnav2">Abrir&nbsp;</span><img src="baixo.gif" height="9" width="9" border="0">';
                                //xpand_img.src = '/lib/image/0,,5768,00.gif';
                        } else {
                                hdn_div.style.display = 'block';
                                //shdn_span.innerHTML = '<span class="smallnav2">Fechar&nbsp;</span><img src="cima.gif" height="9" width="9" border="0">';
                                //xpand_img.src = '/lib/image/0,,5767,00.gif';
                        }

                }
        }

        function Abrir_div(number, default_status) {
                if (is_ie4up || is_gecko) {
                        document.writeln("<div id='hdn" + number + "' name='hdn" + number + "' style='display: " + default_status + ";'>");
                }
        }


        function Fechar_div(number, default_status) {
                if (is_ie4up || is_gecko) {
                        document.writeln("</div>");
                }
        }

        function Abrir_span(number, default_status) {
                if (is_ie4up || is_gecko) {
                        if(default_status == 'block') {
                                var span_text = '<span class="smallnav2">Fechar&nbsp;</span><img src="cima.gif" height="9" width="9" border="0">';
                        } else {
                                var span_text = '<span class="smallnav2">Abrir&nbsp;</span><img src="baixo.gif" height="9" width="9" border="0">';
                        }
                        document.writeln("<a href='javascript: show_hide(" + number + ");'><span id='shdn" + number + "' class='small_Text'>" + span_text + "</span></a>");
                }
        }