I have been using this reliably for over a year now. They have the bulk of the functions already done that you'd want: http://phpjs.org/statistics/index http:/

I have been using this reliably for over a year now. They have the bulk of the functions already done that you'd want: http://phpjs.org/statistics/index http://phpjs.org/statistics/index . Extra nice: you can download the js one function at a time, if you so choose. Similar alternative for date(): http://www.svendtofte.com/javascript/javascript-date-string-formatting/ http://www.svendtofte.com/javascript/javascript-date-string-...