This is my page: CampaignMemberEditPage

i call this page from from a custom button "Manage members" in a standard page with URL \apex\CampaignMemberEditPage?id={!Campaign1__c.Id}

The same code works for another custom Vf page when i do not pass any parameters. According to me,the passing of an ID via a custom button is creating a conflict while i call my form using 'CampaignMemberEditPage:frmMembers' might cause a problem.

Please help me if you can find any solution for this. All other functionalities r working correctly. Or still if you could send me a site where i could get more information about javascript and Visualforce.

Thanks a lot for your precious time in advance.


<apex:page standardController="Campaign1__c" extensions="AP02CampaignMember" tabStyle="Campaign1_Member__c"  tabStyle="Campaign1_Member__c">

<!-- ********* JAVASCRIPT USED TO TOGGLE SELECTION OF SEARCH RESULTS ************ -->
<script type="text/javascript">
function customSelectChecked(form, element_name, value)
    {
        var i = 0;
        alert(form + "," + element_name+","+value);
        for (i = 0; i < form.elements.length; i++) {
            if (form.elements[i].name.search('selected') > 0 && form.elements[i].disabled == false) {
            alert('Hi');
                form.elements[i].checked = value;
            }
        }
    }
    function customSelectAllOrNoneByCheckbox(form, element_name, control)
    {  customSelectChecked(form, element_name, control.checked); }

function customSelectAllOrNoneByCheckbox(form, element_name, control)
{  customSelectChecked(form, element_name, control.checked); }
</script>
    <apex:form id="frmMembers">
    <script>
        var frmMembers = '{!$Component.frmMembers}';
    </script>
        <apex:pageBlock title="Manage Members" id="manageMembers">
        <apex:messages />
        <apex:pageBlockButtons >
            <apex:commandButton title="Edit Members" value="Update" action="{!updateMember}"/>
            <apex:commandButton title="Delete Members" value="Remove" action="{!remove}" />
        </apex:pageBlockButtons>
        <apex:pageblockSection title="Member Status" collapsible="false" id="Options">
            <apex:outputText >Select standard Status associated with Members</apex:outputText>
                <apex:selectList value="{!selectedstatus}" id="values" size="1">
                    <apex:selectOptions value="{!CampStatus}"/>
                </apex:selectList>
            </apex:pageblockSection>


            <apex:outputText > Select all members </apex:outputText>
            <apex:pageBlock title="Campaign Members" id="membersBlock">
        <script>
            var membersTable = '{!$Component.memberTable}';
        </script>
            <apex:dataTable value="{!cMembersList}" var="cmember" id="membersTable"
            styleClass="tableClass list"
            rowClasses="odd,even"
            onrowMouseOver="if(window.hiOff){hiOff(this)}"
            onrowMouseOver="if(window.hiOn{hiOn(this)})">
            <apex:facet name="caption"></apex:facet>
                <apex:facet name="header"></apex:facet>
                <apex:column >
                    <apex:facet name="header">Select
                        <apex:inputCheckbox id="selectall" selected="true" onclick="javascript:customSelectAllOrNoneByCheckbox(document.forms[frmMembers],membersTable + ':', this);"/>
                        </apex:facet>
                    <apex:inputCheckbox value="{!cmember.selected}" id="selected" />
                </apex:column>
                <apex:column >
                    <apex:facet name="header">Name</apex:facet>
                    <apex:outputLink target="_blank" value="{!URLFOR($Action.Campaign1_Member__c.View, cmember.member.ID)}" >{!cmember.member.name}</apex:outputLink>
                </apex:column>
                <apex:column >
                    <apex:facet name="header">Status</apex:facet>
                    <apex:outputText value="{!cmember.member.Status__c}"/>
                </apex:column>
                <apex:column >
                    <apex:facet name="header">Email</apex:facet>
                    <apex:outputText value="{!cmember.member.Email__c}"/>
                </apex:column>
                </apex:dataTable>
            </apex:pageBlock>
            </apex:pageBlock>
    </apex:form>
</apex:page>