Help me please....
/////////////////////////////////////////////////////////
myFile.js
/////////////////////////////////////////////////////////
window.onbeforeunload=init;
function init()
{ parent.location.reload(); }
/////////////////////////////////////////////////////////
Above code is working fine on F5 in IE to refresh the IFrame with it's Container Page but failed for FireFox

Can you use onunload instead of onbeforeunload?

Totally correct SillyWilly,
onBeforeUnload is a IE only event.
Look there for a list of the "standards" events and their support in different browsers:
http://www.quirksmode.org/js/events_compinfo.html

SillyWilly, Thanks for ur time. But "window.onunload" is not (working) Refreshing the IFrame with its container page on F5, in both of browsers IE and FireFox. Need ur more time please...

Pressing F5 shouldn't create an unload event in any browser, as it is reloading the same page.

Refreshing the IFrame with its container page

I'm not quite getting what you mean by this.

Are you trying to refresh the iframe contents or trying to refresh the parent page?

chrishirst! In brief my requirement is ...

Background - Banner Images Pairs :
Actually , Iframe displays the Banner Image while Iframe Container Page display the Background Image. on F5 , this pair of images refresh perfectly in IE while in FireFox , Background Image become cached and IFrame refreshed , so the Pair of images become unmatched.
Please share ur good Ideas with me to solve my issue.