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Validation for Singapore NRIC and FIN number
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| function validateNRIC(str) { | |
| if (str.length != 9) | |
| return false; | |
| str = str.toUpperCase(); | |
| var i, | |
| icArray = []; | |
| for(i = 0; i < 9; i++) { | |
| icArray[i] = str.charAt(i); | |
| } | |
| icArray[1] = parseInt(icArray[1], 10) * 2; | |
| icArray[2] = parseInt(icArray[2], 10) * 7; | |
| icArray[3] = parseInt(icArray[3], 10) * 6; | |
| icArray[4] = parseInt(icArray[4], 10) * 5; | |
| icArray[5] = parseInt(icArray[5], 10) * 4; | |
| icArray[6] = parseInt(icArray[6], 10) * 3; | |
| icArray[7] = parseInt(icArray[7], 10) * 2; | |
| var weight = 0; | |
| for(i = 1; i < 8; i++) { | |
| weight += icArray[i]; | |
| } | |
| var offset = (icArray[0] == "T" || icArray[0] == "G") ? 4:0; | |
| var temp = (offset + weight) % 11; | |
| var st = ["J","Z","I","H","G","F","E","D","C","B","A"]; | |
| var fg = ["X","W","U","T","R","Q","P","N","M","L","K"]; | |
| var theAlpha; | |
| if (icArray[0] == "S" || icArray[0] == "T") { | |
| theAlpha = st[temp]; | |
| } else if (icArray[0] == "F" || icArray[0] == "G") { | |
| theAlpha = fg[temp]; | |
| } | |
| return icArray[8] != theAlpha ? false : true; | |
| } |
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