How to get element from inside iframe

Question

Hello I have iframe and in the iframe i need to get element of the parent window. How can i do it ?

    index.html

child.html get parent element by id

Answer 1

If you have var myVar in the parent window, you can access it from the child window with window.parent.myVar.

Note: this will only work if both child and parent are on the same domain.

See here for more info.