Check All button for all spring check boxes array

[Darvesh Niz]

Hello
Implementing an array of checkboxes in spring is pretty tedious. i have a array of checkbox which i used to display months and a user can select mulitple months.
i want to implement check all functionlity when a user checks it all months are selected.

below is the code snipped i used in my form

                                <spring:bind path="tour.appMonth[${counter.index}].appMonth">
                                    <input type="hidden" name="<c:out value="${status.expression}"/>"
                                           id="<c:out value="${status.expression}"/>"
                                           value="<c:out value="${status.value}"/>"/><c:out value="${status.value}"/>
                                </spring:bind>
                                <spring:bind path="tour.appMonth[${counter.index}].selected">
                                    <input type="hidden" name="_${status.expression}"/>
                                    <c:choose>
                                        <c:when test="${status.value}">
                                            <input type="checkbox" name="${status.expression}"
                                                   value="true" checked="checked"/>
                                        </c:when>
                                        <c:otherwise>
                                            <input type="checkbox" name="${status.expression}"
                                                   value="true"/>
                                        </c:otherwise>
                                    </c:choose>
                                </spring:bind>

and the check boxes are being rendered as

 <td>
                                
          <input type="hidden" name="appMonth[0].appMonth"
                id="appMonth[0].appMonth"
                 value="Jan"/>Jan                                
            <input type="hidden" name="_appMonth[0].selected"/>
           <input type="checkbox" name="appMonth[0].selected"/>                                    
</td>

This is the java script function i wrote and this is the form declaration
<form:form name="newTour" action="new-tour.html" modelAttribute="tour" method="post">

function checkAllMonths() {
        window.alert("checked");
        if (document.newTour.checkAllMonth.checked) {
            for (var i = 0; i < 11; i++)
            {
                //document.tour.appMonth[0].checked=true;
                eval("document.newTour.appMonth[i].selected").checked = true;
            }
        }
        else {
            for (var i = 0; i < cbCount; i++)
            {
                eval("document.newTour.appMonth[" + i + "]").checked = false;
            }
        }
    }

any help

[Vyas Sanzgiri]

http://stackoverflow.com/questions/386281/how-to-implement-select-all-check-box-in-html