Check boxes check all tips

pass it the form id and true/false and this should do it:

function toggleCheck (form_id, checked) {
var form = $(form_id);
for (var i = 0; i < form.elements.length; i++) {
form.elements[i].checked = checked;



This should select and check all the inputs in the element with id '#container'
to uncheck them, just change the checked to false

    <%=link_to_function "Select All", update_page {|page|'#container input').each {|x|x.checked = true}}%>

e.g this will check the following checkboxes

<div id="container">
    <input type="checkbox" name="loves[ruby]"> i love ruby
    <input type="checkbox" name="loves[rails]"> i love rails

Hope this helps!