oldie-redirect.js

/*******************************************************************************
	OLDIE - or Old IE. A script that finds the version of IE you're using,
	and redirects if lower than the set parameter.
	[[ Created by Ryan McLaughlin, www.DaoByDesign.com ]]
*******************************************************************************/
var browser		= navigator.appName
var ver			= navigator.appVersion
var thestart	= parseFloat(ver.indexOf("MSIE"))+1 //This finds the start of the MS version string.
var brow_ver	= parseFloat(ver.substring(thestart+4,thestart+7)) //This cuts out the bit of string we need.

if ((browser=="Microsoft Internet Explorer") && (brow_ver < 6)) //By default the min. IE ver is set to 6. Change as desired.
	{
	window.location="http://www.example.com/oldie.html"; //URL to redirect to.
	}