Question

I’m trying to perform an effect targeted at objects with the same id, but it only works on the first one:

$("#continue").addGlow({ .. etc.. });

How do I carry forth with this?

Answer 1

You can’t. This is a consequence of the HTML standard. As Peter mentioned in the above comment, you should use classes. Not only is what you’re doing bad practice, but it could have unspecified behavior on old, mobile, or even some mainstream browsers.

http://www.w3.org/TR/WD-html40-970708/struct/global.html

id = name
This attribute assigns a document-wide name to a specific
instance of an element. Values for id must be unique within a
document. Furthermore, this attribute shares the same name space as
the name attribute.

(emphasis mine)