disable back in Opera

Hi,
In my site i disabled the back buton using the script
javascript:window.history.forward(1);
Its work fine in IE & Netscape.But its not working in Opera.
What will be the solution.

Its work fine in IE & Netscape.

I bet it doesn't. Remember that this is client side scripting, so any server side code will still run before this forwards the user. This is always a dodgy thing to do, and you are far safer coding your application to expect the user navigating back, rather than trying to stop them doing this.
As with any client side script you always get issues cross browser. It looks like a quick fix, but generally is not. I'm not surprised this doesn't work in Opera; have you tried it on Konqueror, Safari, Mozilla, Camino, OmniWeb, iCab and Lynx yet?
You might want to repost this in the JavaScript forum for some more detail.

"Rahjesh" -

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I'll go ahead and move this thread to the JavaScript and HTML forum, because that's where your real problem lies...