How can i call a window child function in javascript?

Question

I am calling the parent function like window.parent.functionname(); from the child page. How can i call the window.child.function() from the parent page to child page.

Any help is appreciated.

Answer 1

Give your iFrame an id and try

document.getElementById("iFrameId").contentWindow.functionname()

This works even when you have multiple iFrames in the same page irrespective of their order.

Answer 2

Do you have an iframe?

Do something like that:

window.frames[0].contentDocument.functionname();