dygraphs JS Charts - Free JavaScript Charts
dygraphs is an open source JavaScript charting library for displaying data of time series.It can show values on mouseover that makes discovering the values easier & zooms any selected area.The data can be called from a CSV file or mentioned in the code staticly (in CSV format).
The library can handle fractions intelligently & supports error bands around data series.It works in all major browsers (IE requires excanvas) & it is compatible with the Google Visualization API.