redirecting view based on useragent

[eluser]sooner[/eluser]
markup2go, thx for ur reply those extending the controller its all done...my problem was not on that..my issue was different..but i found a way to do it as i have described early. the topic may indicate my problem is redirecting...but my problem is exactly redirecting to different main template,which is done too.But loading different views which should show up in the different main template i redirected.at that place i found the problem...