| function value(name) |
| { |
| var item = document.getElementById(name); |
| return (item ? item.value : ""); |
| } |
| function isset(name, val) |
| { |
| return (value(name) == val); |
| } |
| function checked(name) |
| { |
| var item = document.getElementById(name); |
| return ((item) && item.checked); |
| } |
| function hide(name) |
| { |
| var item = document.getElementById(name); |
| if (item) |
| item.style.display = 'none'; |
| } |
| function show(name) |
| { |
| var item = document.getElementById(name); |
| if (item) |
| item.style.display = ''; |
| } |
| function set_visible(name, value) |
| { |
| if (value) |
| show(name) |
| else |
| hide(name) |
| } |