Created
August 3, 2012 21:54
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Validate NIP
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| /* | |
| Check for validity of polish VAT ID number: NIP | |
| */ | |
| function isNIPvalid(NIP) { | |
| var controlSum = 0, factors = [6, 5, 7, 2, 3, 4, 5, 6, 7]; | |
| NIP += ''; | |
| NIP = NIP.replace(/[^0-9]+/g,''); | |
| if(NIP.length < 10 || NIP.length > 10) | |
| return false; | |
| for(var c = 0; c <= 8; c++) { | |
| controlSum += parseInt(NIP.charAt(c)) * factors[c]; | |
| } | |
| if(controlSum % 11 == parseInt(NIP.charAt(9))) { | |
| return true; | |
| } | |
| return false; | |
| } |
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