GA 事件跟踪 + onClick="document.location.href='

制作我们正在开发的网站的开发人员使用以下按钮链接到 PDF 下载:

The developer who made a site we're working on has buttons linking to PDF downloads using:

<button onClick="document.location.href='doc.pdf'"> Doc Name </button>

但是，我们还需要跟踪这些事件(我们不想通过 PDF 下载来夸大浏览量)，使用:

However, we also need to track events for these (we don't want to inflate pageviews with PDF downloads), using:

<button onClick="_gaq.push(['_trackEvent', 'PDFs', 'Download', 'Doc Name']);""> Doc Name </button>

那么，问题是，如何在不使两个必要的onClick 冲突"的情况下进行 GA 事件跟踪?

So, the issue is, how can I do GA event tracking without having the two requisite 'onClick's conflicting?

我正在考虑使用onMouseDown"触发 GA 事件，但这会不太准确，不是吗?

I was thinking about triggering the GA Event with 'onMouseDown,' but this would be less accurate, no?

非常感谢.