HTML: click <a>,add active class, and remove other a's active class: a is an array, as: and a[1]: value of a[1]'s id attribute: $(a[1]).attr['id'] , w ...
HTML: click <a>,add active class, and remove other a's active class: a is an array, as: and a[1]: value of a[1]'s id attribute: $(a[1]).attr['id'] , w ...