The source.
<applet code="spreadsheet.class" width=320 height=120>

<param name=rows value="4">
<param name=c3 value="fC1+C2">
<param name=c2 value="fA2*B2">
<param name=c1 value="fA1*B2">
<param name=title value="Example">
<param name=b2 value="v1000">
<param name=b1 value="v500">
<param name=cols value="3">
<param name=a2 value="v30">
<param name=a1 value="v10">
</applet>