jQuery引导主题切换器

Question

我做了一个小功能，从我的集线器的黑暗版本切换到轻型版本。但是，我的代码无效，我检查了控制台并且没有记录任何错误。

有人能帮我发现问题吗？我是一个菜鸟和jQuery / Javascript的新手。当我点击链接时，它什么都不做，也没有产生错误。

这是代码：

<li>
    <a id="switch-theme" href="#" rel="tooltip" title="Change style" onclick="return false;">
          <i class="fa fa-paint-brush"></i>
    </a>
</li>

<script>
currentTheme = localStorage['theme'];
if(currentTheme == null) //theme isn't set, just set it to dark.
    currentTheme = "dark";

function themeHandler() {
    $("head link#theme-stylesheet").attr("href", "includes/frontend/theme/bootstrap-" + currentTheme + ".min.css");

    //handle theme switching.
    $("#switch-theme").click(function() {
        var theme = "dark";
        if(currentTheme == "dark") {
            theme = "light";
        }
        localStorage['theme'] = theme;
        currentTheme = theme;
        $("head link#theme-stylesheet").attr("href", "includes/frontend/theme/bootstrap-" + theme + ".min.css");
    });

    //we just want the current theme.
    return false;
}

$(document).ready(function() {
    $("[rel=tooltip]").tooltip();
    themeHandler();
});

</script>

我需要做些什么来使我的工作符合预期？