You may edit the applet parameters:
Enter latitude and longitude in decimal degrees, eastern longitudes with "-" and adjust the HEIGHT of the applet window to the number of days to be computed.

<APPLET CODE="rsazelxx.class" WIDTH=250 HEIGHT=300 ALIGN=bottom archive="AppletClasses.jar">
<PARAM NAME=location VALUE="Berlin">
<PARAM NAME=latitude VALUE="52.51">
<PARAM NAME=longitude VALUE="-13.41">
<PARAM NAME=numberOfDays VALUE=14>
</APPLET>

xx is the version number.

Check the box to see the hours of daylight and night:

The red bar in first line indicates the current time. The time is updated when checking or unchecking the box.

Please visit my:

GeoAstro Applet Collection