another try ...: 2008

Saturday, August 23, 2008

Ngau Tau Kok Yu Lan Festival

Yu Lan Festival, Ngau Tau Kok, Hong Kong, 2008

Preparing altar

Busy kitchen

Cheers

Charity bidding

My own way

Show time

Taking rest

Hawking

Friday, April 11, 2008

Canon Lens Birthday Code Decoder / JS 1.1.0

Canon Lens Birthday Code Decoder / JS is a collection of JavaScript embedable in your HTML, which can show the manufacturing factory, production date and age of some Canon lenses and SLR with a lens date code printed on the tail of the lens mount or SLR body's film chamber.

Just type in a valid 5 or 6 charactors code (eg. UK0129, U1140F or V1006) at the input box below and get the age of your Canon machine.

Code:

How to make it work on your web:

Make a backup of your HTML before making any change.
Copy the following code and paste it between the <BODY> and </BODY> tags of your HTML without modification.
<SCRIPT language="JavaScript"> function decodeFactory(code){ switch(code){ case 'F': return 'Fukushima-shi, Fukushima, Japan'; break; case 'K': return 'Kitsuki-shi, Oita, Japan'; break; case 'M': return 'Koyu-gun, Miyazaki, Japan'; break; case 'O': return 'Higashikunisaki-gun, Oita, Japan'; break; case 'S': return 'Nagahama-shi, Shiga, Japan'; break; case 'T': return 'Tan Tzu Hsiang, Taichung Hsien, Taiwan'; break; case 'U': return 'Utsunomiya-shi, Tochigi, Japan'; break; default: return 'an unkown factory'; } } function decodeYear1(code){ yearList = new Array( 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1978, 1980, 1981, 1982, 1983, 1984, 1985 ); return yearList[code.charCodeAt(0) - 65]; } function decodeYear2(code){ yearList = new Array( 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 ); return yearList[code.charCodeAt(0) - 65]; } function decodeMonth(code){ code = code - 1; monthList = new Array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"); return monthList[code]; } function calAge(year, month){ month = month - 1; now = new Date(); if(year > now.getFullYear()){ return 'undefined'; }else if (year == now.getFullYear() & month > now.getMonth()){ return 'undefined'; }else{ if(month <= now.getMonth()){ yearDiff = now.getFullYear() - year; monthDiff = now.getMonth() - month; }else{ yearDiff = now.getFullYear() - year - 1; monthDiff = (now.getMonth() - 1) + (13 - month); } age = "" + yearDiff + " year"; if(yearDiff > 1){ age = age + "s"; } if(monthDiff > 0){ age = age + " " + monthDiff + " month"; if(monthDiff > 1){ age = age + "s"; } } return age; } } function decode110(code){ code = code.toUpperCase(); if(code.length == 6){ if(decodeYear1(code.substr(1,1)) == undefined){ month = new Number(code.substr(1,2)); year1 = decodeYear1(code.substr(0,1)); year2 = decodeYear2(code.substr(0,1)); age1 = calAge(year1, month); age2 = calAge(year2, month); factory = decodeFactory(code.substr(5,1)); if(factory == 'an unkown factory'){ month = NaN; } }else{ month = new Number(code.substr(2,2)); year1 = decodeYear1(code.substr(1,1)); year2 = decodeYear2(code.substr(1,1)); age1 = calAge(year1, month); age2 = calAge(year2, month); factory = decodeFactory(code.substr(0,1)); } }else if(code.length == 5){ month = new Number(code.substr(1,2)); year1 = decodeYear1(code.substr(0,1)); year2 = decodeYear2(code.substr(0,1)); age1 = calAge(year1, month); age2 = calAge(year2, month); factory = decodeFactory("?"); }else{ month = NaN; } if (isNaN(month) || month == 0 || month > 12 || year1 == undefined || age1 == 'undefined'){ result = "Invalid code [" + code + "]."; }else{ result = "Your Canon lens or SLR with code [" + code + "], was born on the " + decodeMonth(month) + " of " + year1; if(age2 != 'undefined'){ result = result + " or " + year2; } result = result + " at " + factory + ". Aged " + age1; if(age2 != 'undefined'){ result = result + ' or ' + age2; } result = result + "."; } return result; } function decodeCanonLensAge110(code,resultElementID){ element = document.getElementById(resultElementID); element.innerHTML = decode110(code.value); } </SCRIPT> <P>Code: <INPUT type="text" name="code" size="20" onkeyup="javascript:decodeCanonLensAge110(this, 'canonLensAge110');" maxlength="6"></P> <P id="canonLensAge110"></P>
Save your work.
Done.

Environment tested:

Browser / OS	Test result
Firefox 2 / Mac OS X 10.5 PPC	Work
Firefox 2 / Windows XP	Work
Internet Explorer 6 / Windows XP	Work
Safari 3 / Mac OS X 10.5 PPC	Work

Version history:

Version	Date	Description
1.1.0	11 April 2008	Add logic to decode 5 charactors code as documented at [How to determine the age of your Canon FD or EOS gear]. Fix logic to identify invalid 6 charactors code with a numeric 2nd charactor (eg. U01056).
1.0.0	18 December 2007	Initial public release

Distribution:
You are free to make copy, modification and distribution of this script. But please make a back link to this page, so that the original source can be reached in case of needed.

This script is provided as is. I will not resposible for any result caused by using it.

Enjoy.