/* <![CDATA[ */

        /* prepina zobrazeni elemntu id */
        function show(id) {
                if (document.getElementById(id).style.display != 'block') {
                   document.getElementById(id).style.display = 'block'
                } else if (document.getElementById(id).style.display != 'none') {
                  document.getElementById(id).style.display = 'none';
                }
                return false;
        }

        /* zobrazuje element id */
        function only_show(id) {
                document.getElementById(id).style.display = 'block';
                return false;
        }
        
        /* aktivuje/deaktivuje polozky pro novou firmu */
        function enable_comp() {
                el1 = document.getElementById('abbrev');
                el2 = document.getElementById('name');
                if (document.getElementById('next_comp').checked) {
                        el1.disabled = false;
                        el1.style.backgroundColor = 'white';
                        el2.disabled = false;
                        el2.style.backgroundColor = 'white';
                } else {
                        el1.disabled = true;
                        el1.style.backgroundColor = 'gray';
                        el2.disabled = true;
                        el2.style.backgroundColor = 'gray';
                }
        }
        
        /* vyplnuje formlurar pro aktualiazici udaju */
        function fillform(num,day,month,year,type,text,prize,company) {
                only_show('add_item');
                document.getElementById('num').value=num;
                document.getElementById('day').options[day-1].selected=true;
                document.getElementById('month').options[month-1].selected=true;
                document.getElementById('year').options[year-start_year].selected=true;
                el = document.getElementById('type');
                for (i=0; i<el.options.length; i++) {
                        if (el.options[i].value==type) {
                                el.options[i].selected=true;
                        }
                }
                document.getElementById('text').value=text;
                document.getElementById('prize').value=prize;
                el = document.getElementById('company');
                for (i=0; i<el.options.length; i++) {
                        if (el.options[i].value==company) {
                                el.options[i].selected=true;
                        }
                }
                document.getElementById('sub_button').value="Aktualizovat položku";
        }

        /* ]]> */