function checkFrameset() {
	var minNav3 = (navigator.appName == "Netscape" && 
parseInt(navigator.appVersion) >= 3)
	var minIE4 = (navigator.appName.indexOf("Microsoft") >= 0 && parseInt(navigator.appVersion) >= 4)
	var minDOM = minNav3 || minIE4   // baseline DOM required for this function
	var isNav4 = (navigator.appName == "Netscape" && 
parseInt(navigator.appVersion) == 4)
	if (parent == window) {
		// Don't do anything if running NN4 
		// so that the frame can be printed on its own
		if (isNav4 && window.innerWidth == 0) {
			return
		}
		if (minDOM) {
			// Use replace() to keep current page out of history
			location.replace("index.html?content=" + escape(location.href))
		} else {
			location.href = "index.html?content=" + escape(location.href)
		}
	}
}
// Invoke the function
checkFrameset()