Thanks to [url=http://tube.geogebra.org/user/profile/id/1143]Prof. Wright[/url] with [url]http://www.geogebra.org[/url] with his [url=http://tube.geogebra.org/student/m222971]app[/url] on [url]http://www.geogebratube.org[/url]. I made some minor changes to his work to fit my web site's standard.
