Jquery执行两次

Question

我有以下jQuery，我必须在选择列表项时禁用其他列表的某些项。一切都工作正常，现在我坚持的一点是，我必须选择一些列表，所以我已经给出了条件，但是当我返回true它执行jQuery两次，并且功能启用禁用停止正常工作，但是当我返回true，启用禁用工作更正但单选选项无法正常工作

.delegate('input[type="checkbox"], input[type="radio"]', 'click.multiselect', function (e) {
    var $this = $(this);
    var val = this.value;
    var checked = this.checked;
    var tags = self.element.find('option');

    // bail if this input is disabled or the event is cancelled
    if (this.disabled || self._trigger('click', e, {
        value: val,
        text: this.title,
        checked: checked
    }) === false) {
        e.preventDefault();
        return;
    }

    //filter(':checked')
    // Remove from Y single Y multiple Y2 Multiple Datacolumn if selected in X 
    if (val.indexOf("ltrXaxis") >= 0) {
        if ($('#lsltrXaxis option').filter(':checked').length > 0 && checked == true) {
            // alert('Maximum One can be selected');
            return true;
        }

        var val1 = val.replace("ltrXaxis", "ltrXYAxis");
        var val2 = val.replace("ltrXaxis", "ltrYMaxis");
        var val3 = val.replace("ltrXaxis", "ltrY2axis");
        var val4 = val.replace("ltrXaxis", "ltrSeriesColumn");
        var val5 = val.replace("ltrXaxis", "ltrDataColumn");

        if (checked == true) {
            $('#lsltrXYAxis , :input[value="' + val1 + '"]').attr({
                'disabled': true,
                    'aria-disabled': true,
                    'checked': false,
                    'aria-selected': false
            }).addClass('ui-state-disabled');
            $('#lsltrYMaxis , :input[value="' + val2 + '"]').attr({
                'disabled': true,
                    'aria-disabled': true,
                    'checked': false,
                    'aria-selected': false
            }).addClass('ui-state-disabled');
            $('#lsltrY2axis , :input[value="' + val3 + '"]').attr({
                'disabled': true,
                    'aria-disabled': true,
                    'checked': false,
                    'aria-selected': false
            }).addClass('ui-state-disabled');
            $('#lsltrDataColumn , :input[value="' + val5 + '"]').attr({
                'disabled': true,
                    'aria-disabled': true,
                    'checked': false,
                    'aria-selected': false
            }).addClass('ui-state-disabled');
        } else {
            $('#lsltrXYAxis , :input[value="' + val1 + '"]').attr({
                'disabled': false,
                    'aria-disabled': false
            }).removeClass('ui-state-disabled');
            $('#lsltrYMaxis , :input[value="' + val2 + '"]').attr({
                'disabled': false,
                    'aria-disabled': false
            }).removeClass('ui-state-disabled');
            $('#lsltrY2axis , :input[value="' + val3 + '"]').attr({
                'disabled': false,
                    'aria-disabled': false
            }).removeClass('ui-state-disabled');
            $('#lsltrDataColumn , :input[value="' + val5 + '"]').attr({
                'disabled': false,
                    'aria-disabled': false
            }).removeClass('ui-state-disabled');
        }
        return true;
    }

    // Remvoe From DataCoulumn If selected in Y Single
    if (val.indexOf("XYAx") >= 1) {
        if ($('#lsltrXYAxis option').filter(':checked').length > 0 && checked == true) {
            // alert('Maximum One can be selected');
            return true;
        }

        var val5 = val.replace("ltrXYAxis", "ltrDataColumn");

        if (checked == true) {
            $('#lsltrDataColumn , :input[value="' + val5 + '"]').attr({
                'disabled': true,
                    'aria-disabled': true,
                    'checked': false,
                    'aria-selected': false
            }).addClass('ui-state-disabled');
        } else {
            $('#lsltrDataColumn , :input[value="' + val5 + '"]').attr({
                'disabled': false,
                    'aria-disabled': false
            }).removeClass('ui-state-disabled');
        }
        return true;
    }

    // Remove From Y2 Multiple If selected in Y Multiple
    if (val.indexOf("YMax") >= 1) {

        var val3 = val.replace("ltrYMaxis", "ltrY2axis");
        if (checked == true) {
            $('#lsltrY2axis , :input[value="' + val3 + '"]').attr({
                'disabled': true,
                    'aria-disabled': true,
                    'checked': false,
                    'aria-selected': false
            }).addClass('ui-state-disabled');
        } else {
            $('#lsltrY2axis , :input[value="' + val3 + '"]').attr({
                'disabled': false,
                    'aria-disabled': false
            }).removeClass('ui-state-disabled');
        }
        return true;
    }

    // Return False if DataColumn selected More than 1
    if (val.indexOf("ltrDataColumn") >= 1) {
        if ($('#lsltrDataColumn option').filter(':checked').length > 0 && checked == true) {
            //  alert('Maximum One can be selected');
            return true;
        }
    }

    // Return False if Series Column selected More than 1
    if (val.indexOf("trSeries") >= 1) {
        if ($('#lsltrSeriesColumn option').filter(':checked').length > 0 && checked == true) {
            //  alert('Maximum One can be selected');
            return true;
        }
    }

    // make sure the input has focus. otherwise, the esc key
    // won't close the menu after clicking an item.
    $this.focus();

    // toggle aria state
    $this.attr('aria-selected', checked);

    // change state on the original option tags
    tags.each(function () {
        if (this.value === val) {
            this.selected = checked;
        } else if (!self.options.multiple) {
            this.selected = false;
        }
    });

    // some additional single select-specific logic
    if (!self.options.multiple) {
        self.labels.removeClass('ui-state-active');
        $this.closest('label').toggleClass('ui-state-active', checked);
        // close menu
        self.close();
    }

    // fire change on the select box
    self.element.trigger("change");

    // setTimeout is to fix multiselect issue #14 and #47. caused by jQuery issue #3827
    // http://bugs.jquery.com/ticket/3827
    setTimeout($.proxy(self.update, self), 10);
});

主要问题是返回true和false，因为之后某些代码正在执行，

我做错了什么？