GET/SET element inside of iframe from parent pages

[MATTXtwo]

how to get/set element that inside of iframe from parent pages..
please give me tip..
my iframe define :name="ifrMenu" id="ifrMenu"
the element inside of iframe that i need control :id="mnuLevel"

[iam_clint]

Moving your thread to javascript.

[mrhoo]

You need a reference not to the iframe, but to the document in the window in the iframe:
var who=document.ge tElementById("i frMenu");
var document2= who.contentWind ow? who.contentWind ow.document || who.contentDocu ment;

document2.getEl ementById("mnuL evel")