Event listener for when element becomes visible?

Question

I am building a toolbar that is going to be included into a page. the div it is going to be included in will default to display:none. Is there a way i can p

Answer 1

Just to comment on the DOMAttrModified event listener browser support:

Cross-browser support

These events are not implemented consistently across different browsers, for example:

• IE prior to version 9 didn't support the mutation events at all and does not implement some of them correctly in version 9 (for example, DOMNodeInserted)

• WebKit doesn't support DOMAttrModified (see webkit bug 8191 and the workaround)

• "mutation name events", i.e. DOMElementNameChanged and DOMAttributeNameChanged are not supported in Firefox (as of version 11), and probably in other browsers as well.

Source: https://developer.mozilla.org/en-US/docs/Web/Guide/Events/Mutation_events