Hi, I am trying to build a website that provides stock information like the one in Yahoo Finance:
http://finance.yahoo.com/echarts?s=MSFT#chart7:symbol=msft;range=3m;indicator=bollinger+volume;charttype=line;crosshair=on;ohlcvalues=0;logscale=on;source=undefined
All the source and analytical data is already there, however I am trying to implement a mechanism that allows users to click and graph additional chart on each mouse click, meaning there'll be multiple postbacks. The problem is with each postback, existing charts plotted by users should remain on the page, and only the new chart is added.
In the link above, if you click on ...
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