Fixing issue for attributes with dot

[dondurivan]

Adding single quotes fixes the error when there is dot in attribute.

In my case:
for=flat.flat was returning Uncaught Error: Syntax error, unrecognized expression: [for=flat.flat]

Adding quotes fixed it.

[rtelicak]

Hi,

I have similar problem, but there are many more special characters which cause selector not to work properly, like
, : [
see jquery selectors docs right at the beginning

so I'd go with escaping selector first, then use it as usually

// escape possible special characters in selector
elLabelId = elLabelId.replace(/[!"#$%&'()*+,.\/:;<=>?@\[\\\]^`{|}~]/g, '\\$&')

tried it with

<input id="[a." type="checkbox">
<input id="a.b." type="checkbox">
<input id="asd!*" type="checkbox">
<input id="!@##$%^%&^&*)" type="checkbox">

and worked well.