// JScript File


    function ChangeCheckBoxState(id, checkState)
    {
        var cb = document.getElementById(id);
        if (cb != null)
           cb.checked = checkState;
    }
    
    function ChangeAllCheckBoxStates(checkState)
    {
        // Toggles through all of the checkboxes defined in the CheckBoxIDs array
        // and updates their value to the checkState input parameter
        if (CheckBoxIDs != null)
        {
            for (var i = 0; i < CheckBoxIDs.length; i++)
               ChangeCheckBoxState(CheckBoxIDs[i], checkState);
            
        }
    }
    
    function ChangeHeaderAsNeeded()
    {
        // Whenever a checkbox in the GridView is toggled, we need to
        // check the Header checkbox if ALL of the GridView checkboxes are
        // checked, and uncheck it otherwise
        if (CheckBoxIDs != null)
        {
            // check to see if all other checkboxes are checked
            for (var i = 1; i < CheckBoxIDs.length; i++)
            {
                var cb = document.getElementById(CheckBoxIDs[i]);
                if (!cb.checked)
                {
                    // Whoops, there is an unchecked checkbox, make sure
                    // that the header checkbox is unchecked
                    ChangeCheckBoxState(CheckBoxIDs[0], false);
                    return;
                }
            }
            
            // If we reach here, ALL GridView checkboxes are checked
            ChangeCheckBoxState(CheckBoxIDs[0], true);
        }
    }


if(typeof(Sys)!=='undefined')Sys.Application.notifyScriptLoaded();