if (self.location==parent.location) {
	self.location.href="index.html"
}

function redirect() {
	var mainFilename = new String
	var secondaryFilename = new String
	var secondaryExtension = new String
	var dotPos = new Number
	var strLen = new Number
	var secondaryExtensionOK = new Boolean

	mainFilename = self.location.href
	strLen = mainFilename.length
	dotPos = mainFilename.lastIndexOf(".")
	secondaryExtension = mainFilename.substring(1+dotPos,strLen)
	mainFilename = mainFilename.substring(0,dotPos)
	secondaryFilename = mainFilename+"2."+secondaryExtension
	secondaryExtensionOK=secondaryExtension=="htm"||secondaryExtension=="html"||secondaryExtension=="asp"

	// redirect secondary frame if required
	if(parent.Secondary.location.href!=secondaryFilename&&secondaryExtensionOK) {
		parent.Secondary.location.href=secondaryFilename
	}
}