Javascript替换URL中的字符串

Question

我认为这是微不足道的，但无法解决:(

我想用javascript更改mu url中传递的参数。

var url = "http://example.com/categoryname/5/%23date/archive";
url = url.replace(/%23date/g, newDateValue);

我在互联网上搜索了超过几个小时，但仍未修复。请帮忙！

更新

这是Yii中的完整代码

    $this->widget('zii.widgets.jui.CJuiDatePicker', array(
        'name' => 'inline_datepicker',
        'flat' => true,
        'language' => Yii::app()->language,
        'value' => strtotime($date),
        'themeUrl' => Yii::app()->baseUrl,
        'theme' => 'themes/haber',
        'cssFile' => '/lib/styles/datepicker.css',
        'options' => array(
            'dateFormat' => 'dd-mm-yy',
            'showButtonPanel' => 'true',
            'onSelect' => 'js:function(selectedDate){var url = \'' . Yii::app()->createAbsoluteUrl("category/archive", array("id" => $_GET['id'], "name" => $_GET['name'], "date" => "#date")) . '\';  url.replace(/#date/g, selectedDate); alert(url);}',
            'showAnim' => 'slide',//$(location).attr("href", url);
        ))
    );