window.opener alternatives

Question

I am opening a modal popup window. Then I access a parent window textbox and other attributes using window.opener. It is working fine in firefox but not in IE8.

Answer 1

The approach I would take is the following:

1. Use an existing JavaScript UI library because you are not the first person to ever want to do this, failing that
2. Create a function called OpenWindow, that browser sniffs for the window.opener method

For example:

if(window.opener == undefined) {
   //probably not Firefox...
}

and if it finds it then uses it, else it tests for the IE variant and uses it. And then it checks Safari's version, etc...