Trigger onmouseover event programatically in JavaScript

Question

Is there a way to programmatically trigger the onmouseover event in plain JavaScript? or "extract" the method from the onmouseover event to call it directly?

eg

<div id="bottom-div" onmouseover="myFunction('some param specific to bottom-div');">
    <div id="top-div" onmouseover="????????"></div>
</div>

top-div is above bottom-div, so the onmouseover won't get fired in bottom-div. i need a way of calling myFunction('some param specific to bottom-div'); from top-div

Answer 1

You would do it something like this:

document.getElementById('top-div').onmouseover();

However, as mentioned in the comments, it would be worth testing before being considered an issue.

Answer 2

​<a href="index.html" onmouseover="javascript:alert(0);" id="help"​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​>help</a>​​​​​​​​​​​​​​​​​​​​​​​​​​​

​document.getElementById('help').onmouseover();​​​​​​​