Timezone for Asia/Jerusalem

For Asia/Jerusalem (URL below) time zone -- DST begin date seems to be consistently on the 'First Friday' following March 26th every year. If March 26 falls on Friday then DST begins on that Friday. But I fail to see any pattern in DST end date. Currently, we have been defining new time zone rule every year for Asia/Jerusalem in our metadata but want to know if we can fit in some generic pattern to avoid maintenance. http://www.timeanddate.com/worldclock/timezone.html?n=110 Any suggestions ? Vilas --