如何将JavaScript onClick处理程序添加到嵌入式html对象?

我正在尝试将onClick处理程序添加到嵌入式对象.处理程序需要执行一个位于外部.js文件中的函数，该文件通过<script src="...链接到当前html文件.

I'm trying to add an onClick handler to an embedded object. The handler needs to execute a function which is in an external .js file which is linked to the current html file via <script src="....

由于它位于其他位置，我是否需要以其他方式引用该函数?

Do I need to reference the function differently due to it being located elsewhere?

这是当前的代码(不起作用，但也不会产生任何错误):

Here is the code as it currently stands (which does not work, but also does not produce any errors):

<embed src="svg/button.svg" id="buttonEmbed" width="95" height="53" 
type="image/svg+xml" onClick="buttonEvent('buttonClicked')"/>