Chart in DHTML

Web Development, JavaScripts for Download provides WZGrapher Function Graphing and Math Program and JavaScript Vectorgraphics Library to plot chart/graphics.

here list 10 Free CSS Graph Resources

http://dhtmlsite.com/cssgraphs.php

Balamurugan S 's bar graph/pie chart/line chart/multi-line chart javascript library.

http://www.sbmkpm.com/
Bar Graph
pie chart
line chart
multi-line chart

PlotKit - Javascript Chart Plotting is a Javascript graph plotting library. It is aimed at web applications that require plotting series of data in modern web browsers.
PlotKit requires MochiKit. (1.3 or higher)

AjaxMGraph

JavaScript Diagram Builder

OpenLaszlo - the premier open-source platform for rich internet applications.


Graphs and Charts : A collection of JavaScript graph and chart scripts list four possible solution.
CodeThatGrid is an advanced JavaScript grid looking like Microsoft Excel grid that enables a user to display in efficient and fancy way the massifes of data from variety of sources including the CVS and database.

Compare-the-Graphs is an all JavaScript/DHTML, all-open-Web-standards, cross-browser, 500-pixel by 500-pixel 2-variable function grapher. It features completely adjustible axes and up to 12 simultaneous, re-stackable, in-color function plots.

The JavaScript Diagram Builder is a library of some objects and functions, which helps you to display and dynamically modify coordinate diagrams (resp. charts/graphs) in webpages.

XYGraph was created to generate intelligent plots of output data without the need for extensive user input. Take a look at the demo page to see just how useful and proffesional the results are. The script generates an XY Graph using Vector Markup Language (VML) and returns an html string for display via javascript.