[code]You can try with this.
<applet codebase="http://www.phy.ntnu.edu.tw/CoLoS/circuitsimulator/classes/" archive="Circuitsimulator4_.jar,DataGraph4_.jar,STools4.jar,Symantec.jar" code="circuitsimulator.CircuitBuilder.class" id="circuit" name="circuit" width="470" height="400"><param name="intergrid" value="54"><param name="numberofdt" value="1000"><param name="dt" value="1.0e-6"><param name="noc" value="10"><param name="fps" value="50"></applet>
[/code]