var section_id;
var section_status = 0;
var menu_timeout_id;
var section_ids = "1;2;3;4;5;6;7";

function seznam(idecko) {
         el = document.getElementById(idecko).style;
         el.display = (el.display == 'block')?'none':'block';
};

function get_element(name) {
         if (document.all) {
                return document.all[name];
         }
         else {
                return document.getElementById(name);
         };
};

function collapse_menu() {
         var sections_array = new Array();
         sections_array = section_ids.split(";");
         var i = 0;
         var ul_element;
         while (sections_array[i]) {
                ul_element = get_element("menu-"+sections_array[i]);
                ul_element.style.display="none";
                i++;
         };
};

function section_on_now(tmp_section_id) {
         section_id = tmp_section_id;
         section_status = 1;
         section_show();
};

function menu_on() {
         if (section_status == 3) {
                clearTimeout(menu_timeout_id);
                section_status = 2;
         };
};

function menu_off() {
         if (section_status == 2) {
                section_status = 3;
                menu_timeout_id = setTimeout("section_hide()",300);
         };
};

function section_off() {
         if (section_status == 2) { 
                section_status = 3;
                menu_timeout_id = setTimeout("section_hide()",300);
         }
         else if (section_status == 1) {
                     clearTimeout(menu_timeout_id);
                     section_status = 0;
         };
};

function section_on(tmp_section_id) {
         if (section_status == 0) {
                section_status = 1;
                section_id = tmp_section_id;
                menu_timeout_id = setTimeout("section_show()",150);
         }
         else if (section_status == 3) {
                     clearTimeout(menu_timeout_id);
                     if ( section_id == tmp_section_id) {
                             section_status = 2;
                     }
                     else {
                             section_id = tmp_section_id;
                             section_status = 1;
                             section_show();
                     };
         };
};

function section_show() {
         if (section_status == 1) {
                collapse_menu();
                ul_element = get_element("menu-"+section_id);
                ul_element.style.display="block"; 
                section_status = 2;
         };
};

function section_hide() {
         if (section_status == 1) {
                section_status = 0;
         }
         else if (section_status == 3) {
                collapse_menu();
                section_status = 0;
         };
};