function checkVATNumber(toCheck){var vatexp=new Array();var defCCode="PL";vatexp.push(/^(AT)U(\d{8})$/);vatexp.push(/^(BE)(0?\d{9})$/);vatexp.push(/^(BG)(\d{9,10})$/);vatexp.push(/^(CHE)(\d{9})(MWST|TVA|IVA)?$/);vatexp.push(/^(CY)([0-59]\d{7}[A-Z])$/);vatexp.push(/^(CZ)(\d{8,10})(\d{3})?$/);vatexp.push(/^(DE)([1-9]\d{8})$/);vatexp.push(/^(DK)(\d{8})$/);vatexp.push(/^(EE)(10\d{7})$/);vatexp.push(/^(EL)(\d{9})$/);vatexp.push(/^(ES)([A-Z]\d{8})$/);vatexp.push(/^(ES)([A-HN-SW]\d{7}[A-J])$/);vatexp.push(/^(ES)([0-9YZ]\d{7}[A-Z])$/);vatexp.push(/^(ES)([KLMX]\d{7}[A-Z])$/);vatexp.push(/^(EU)(\d{9})$/);vatexp.push(/^(FI)(\d{8})$/);vatexp.push(/^(FR)(\d{11})$/);vatexp.push(/^(FR)([A-HJ-NP-Z]\d{10})$/);vatexp.push(/^(FR)(\d[A-HJ-NP-Z]\d{9})$/);vatexp.push(/^(FR)([A-HJ-NP-Z]{2}\d{9})$/);vatexp.push(/^(GB)(\d{9})$/);vatexp.push(/^(GB)(\d{12})$/);vatexp.push(/^(GB)(GD\d{3})$/);vatexp.push(/^(GB)(HA\d{3})$/);vatexp.push(/^(HR)(\d{11})$/);vatexp.push(/^(HU)(\d{8})$/);vatexp.push(/^(IE)(\d{7}[A-W])$/);vatexp.push(/^(IE)([7-9][A-Z\*\+)]\d{5}[A-W])$/);vatexp.push(/^(IE)(\d{7}[A-W][AH])$/);vatexp.push(/^(IT)(\d{11})$/);vatexp.push(/^(LV)(\d{11})$/);vatexp.push(/^(LT)(\d{9}|\d{12})$/);vatexp.push(/^(LU)(\d{8})$/);vatexp.push(/^(MT)([1-9]\d{7})$/);vatexp.push(/^(NL)(\d{9})B\d{2}$/);vatexp.push(/^(NO)(\d{9})$/);vatexp.push(/^(PL)?(\d{10})$/);vatexp.push(/^(PT)(\d{9})$/);vatexp.push(/^(RO)([1-9]\d{1,9})$/);vatexp.push(/^(RU)(\d{10}|\d{12})$/);vatexp.push(/^(RS)(\d{9})$/);vatexp.push(/^(SI)([1-9]\d{7})$/);vatexp.push(/^(SK)([1-9]\d[2346-9]\d{7})$/);vatexp.push(/^(SE)(\d{10}01)$/);var VATNumber=toCheck.toUpperCase();VATNumber=VATNumber.replace(/(\s|-|\.)+/g,'');var valid=false;for(i=0;i<vatexp.length;i++){if(vatexp[i].test(VATNumber)){var cCode=RegExp.$1;var cNumber=RegExp.$2;if(cCode.length==0){cCode=defCCode;}if(eval(cCode+"VATCheckDigit ('"+cNumber+"')"))valid=VATNumber;break;}}return valid;}function ATVATCheckDigit(vatnumber){var total=0;var multipliers=[1,2,1,2,1,2,1];var temp=0;for(var i=0;i<7;i++){temp=Number(vatnumber.charAt(i))*multipliers[i];if(temp>9)total+=Math.floor(temp/10)+temp%10
else
total+=temp;}total=10-(total+4)%10;if(total==10)total=0;if(total==vatnumber.slice(7,8))return true
else
return false;}function BEVATCheckDigit(vatnumber){if(vatnumber.length==9)vatnumber="0"+vatnumber;if(vatnumber.slice(1,2)==0)return false;if(97-vatnumber.slice(0,8)%97==vatnumber.slice(8,10))return true
else
return false;}function BGVATCheckDigit(vatnumber){if(vatnumber.length==9){var total=0;var temp=0;for(var i=0;i<8;i++)temp+=Number(vatnumber.charAt(i))*(i+1);total=temp%11;if(total!=10){if(total==vatnumber.slice(8))return true
else
return false;}var temp=0;for(var i=0;i<8;i++)temp+=Number(vatnumber.charAt(i))*(i+3);total=temp%11;if(total==10)total=0;if(total==vatnumber.slice(8))return true
else
return false;}if((/^\d\d[0-5]\d[0-3]\d\d{4}$/).test(vatnumber)){var month=Number(vatnumber.slice(2,4));if((month>0&&month<13)||(month>20&&month<33)||(month>40&&month<53)){var multipliers=[2,4,8,5,10,9,7,3,6];var total=0;for(var i=0;i<9;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=total%11;if(total==10)total=0;if(total==vatnumber.substr(9,1))return true;}}var multipliers=[21,19,17,13,11,9,7,3,1];var total=0;for(var i=0;i<9;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];if(total%10==vatnumber.substr(9,1))return true;var multipliers=[4,3,2,7,6,5,4,3,2];var total=0;for(var i=0;i<9;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=11-total%11;if(total==10)return false;if(total==11)total=0;if(total==vatnumber.substr(9,1))return true;else
return false;}function CHEVATCheckDigit(vatnumber){var multipliers=[5,4,3,2,7,6,5,4];var total=0;for(var i=0;i<8;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=11-total%11;if(total==10)return false;if(total==11)total=0;if(total==vatnumber.substr(8,1))return true;else
return false;}function CYVATCheckDigit(vatnumber){if(Number(vatnumber.slice(0,2)==12))return false;var total=0;for(var i=0;i<8;i++){var temp=Number(vatnumber.charAt(i));if(i%2==0){switch(temp){case 0:temp=1;break;case 1:temp=0;break;case 2:temp=5;break;case 3:temp=7;break;case 4:temp=9;break;default:temp=temp*2+3;}}total+=temp;}total=total%26;total=String.fromCharCode(total+65);if(total==vatnumber.substr(8,1))return true
else
return false;}function CZVATCheckDigit(vatnumber){var total=0;var multipliers=[8,7,6,5,4,3,2];var czexp=new Array();czexp[0]=(/^\d{8}$/);czexp[1]=(/^[0-5][0-9][0|1|5|6]\d[0-3]\d\d{3}$/);czexp[2]=(/^6\d{8}$/);czexp[3]=(/^\d{2}[0-3|5-8]\d[0-3]\d\d{4}$/);var i=0;if(czexp[0].test(vatnumber)){for(var i=0;i<7;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=11-total%11;if(total==10)total=0;if(total==11)total=1;if(total==vatnumber.slice(7,8))return true
else
return false;}else if(czexp[1].test(vatnumber)){if(temp=Number(vatnumber.slice(0,2))>53)return false;return true;}else if(czexp[2].test(vatnumber)){for(var i=0;i<7;i++)total+=Number(vatnumber.charAt(i+1))*multipliers[i];total=11-total%11;if(total==10)total=0;if(total==11)total=1;var lookup=[8,7,6,5,4,3,2,1,0,9,10];if(lookup[total-1]==vatnumber.slice(8,9))return true
else
return false;}else if(czexp[3].test(vatnumber)){var temp=Number(vatnumber.slice(0,2))+Number(vatnumber.slice(2,4))+Number(vatnumber.slice(4,6))+Number(vatnumber.slice(6,8))+Number(vatnumber.slice(8));if(temp%11==0&&Number(vatnumber)%11==0)return true
else
return false;}return false;}function DEVATCheckDigit(vatnumber){var product=10;var sum=0;var checkdigit=0;for(var i=0;i<8;i++){sum=(Number(vatnumber.charAt(i))+product)%10;if(sum==0){sum=10};product=(2*sum)%11;}if(11-product==10){checkdigit=0}else{checkdigit=11-product};if(checkdigit==vatnumber.slice(8,9))return true
else
return false;}function DKVATCheckDigit(vatnumber){var total=0;var multipliers=[2,7,6,5,4,3,2,1];for(var i=0;i<8;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=total%11;if(total==0)return true
else
return false;}function EEVATCheckDigit(vatnumber){var total=0;var multipliers=[3,7,1,3,7,1,3,7];for(var i=0;i<8;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=10-total%10;if(total==10)total=0;if(total==vatnumber.slice(8,9))return true
else
return false;}function ELVATCheckDigit(vatnumber){var total=0;var multipliers=[256,128,64,32,16,8,4,2];if(vatnumber.length==8){vatnumber="0"+vatnumber};for(var i=0;i<8;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=total%11;if(total>9){total=0;};if(total==vatnumber.slice(8,9))return true
else
return false;}function ESVATCheckDigit(vatnumber){var total=0;var temp=0;var multipliers=[2,1,2,1,2,1,2];var esexp=new Array();esexp[0]=(/^[A-H|J|U|V]\d{8}$/);esexp[1]=(/^[A-H|N-S|W]\d{7}[A-J]$/);esexp[2]=(/^[0-9|Y|Z]\d{7}[A-Z]$/);esexp[3]=(/^[K|L|M|X]\d{7}[A-Z]$/);var i=0;if(esexp[0].test(vatnumber)){for(i=0;i<7;i++){temp=Number(vatnumber.charAt(i+1))*multipliers[i];if(temp>9)total+=Math.floor(temp/10)+temp%10
else
total+=temp;}total=10-total%10;if(total==10){total=0;}if(total==vatnumber.slice(8,9))return true
else
return false;}else if(esexp[1].test(vatnumber)){for(i=0;i<7;i++){temp=Number(vatnumber.charAt(i+1))*multipliers[i];if(temp>9)total+=Math.floor(temp/10)+temp%10
else
total+=temp;}total=10-total%10;total=String.fromCharCode(total+64);if(total==vatnumber.slice(8,9))return true
else
return false;}else if(esexp[2].test(vatnumber)){var tempnumber=vatnumber;if(tempnumber.substring(0,1)=='Y')tempnumber=tempnumber.replace(/Y/,"1");if(tempnumber.substring(0,1)=='Z')tempnumber=tempnumber.replace(/Z/,"2");return tempnumber.charAt(8)=='TRWAGMYFPDXBNJZSQVHLCKE'.charAt(Number(tempnumber.substring(0,8))%23);}else if(esexp[3].test(vatnumber)){return vatnumber.charAt(8)=='TRWAGMYFPDXBNJZSQVHLCKE'.charAt(Number(vatnumber.substring(1,8))%23);}else
return false;}function EUVATCheckDigit(vatnumber){return true;}function FIVATCheckDigit(vatnumber){var total=0;var multipliers=[7,9,10,5,8,4,2];for(var i=0;i<7;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=11-total%11;if(total>9){total=0;};if(total==vatnumber.slice(7,8))return true
else
return false;}function FRVATCheckDigit(vatnumber){if(!(/^\d{11}$/).test(vatnumber))return true;var total=vatnumber.substring(2);total=(total*100+12)%97;if(total==vatnumber.slice(0,2))return true
else
return false;}function GBVATCheckDigit(vatnumber){var multipliers=[8,7,6,5,4,3,2];if(vatnumber.substr(0,2)=='GD'){if(vatnumber.substr(2,3)<500)return true
else
return false;}if(vatnumber.substr(0,2)=='HA'){if(vatnumber.substr(2,3)>499)return true
else
return false;}var total=0;if(Number(vatnumber.slice(0))==0)return false;var no=Number(vatnumber.slice(0,7));for(var i=0;i<7;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];var cd=total;while(cd>0){cd=cd-97;}cd=Math.abs(cd);if(cd==vatnumber.slice(7,9)&&no<9990001&&(no<100000||no>999999)&&(no<9490001||no>9700000))return true;if(cd>=55)cd=cd-55
else
cd=cd+42;if(cd==vatnumber.slice(7,9)&&no>1000000)return true;else
return false;}function HRVATCheckDigit(vatnumber){var product=10;var sum=0;var checkdigit=0;for(var i=0;i<10;i++){sum=(Number(vatnumber.charAt(i))+product)%10;if(sum==0){sum=10};product=(2*sum)%11;}if((product+vatnumber.slice(10,11)*1)%10==1)return true
else
return false;}function HUVATCheckDigit(vatnumber){var total=0;var multipliers=[9,7,3,1,9,7,3];for(var i=0;i<7;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=10-total%10;if(total==10)total=0;if(total==vatnumber.slice(7,8))return true
else
return false;}function IEVATCheckDigit(vatnumber){var total=0;var multipliers=[8,7,6,5,4,3,2];if(/^\d[A-Z\*\+]/.test(vatnumber))vatnumber="0"+vatnumber.substring(2,7)+vatnumber.substring(0,1)+vatnumber.substring(7,8);for(var i=0;i<7;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];if(/^\d{7}[A-Z][AH]$/.test(vatnumber)){if(vatnumber.charAt(8)=='H')total+=72
else
total+=9;}total=total%23;if(total==0)total="W"
else
total=String.fromCharCode(total+64);if(total==vatnumber.slice(7,8))return true
else
return false;}function ITVATCheckDigit(vatnumber){var total=0;var multipliers=[1,2,1,2,1,2,1,2,1,2];var temp;if(Number(vatnumber.slice(0,7))==0)return false;temp=Number(vatnumber.slice(7,10));if((temp<1)||(temp>201)&&temp!=999&&temp!=888)return false;for(var i=0;i<10;i++){temp=Number(vatnumber.charAt(i))*multipliers[i];if(temp>9)total+=Math.floor(temp/10)+temp%10
else
total+=temp;}total=10-total%10;if(total>9){total=0;};if(total==vatnumber.slice(10,11))return true
else
return false;}function LTVATCheckDigit(vatnumber){if(vatnumber.length==9){if(!(/^\d{7}1/).test(vatnumber))return false;var total=0;for(var i=0;i<8;i++)total+=Number(vatnumber.charAt(i))*(i+1);if(total%11==10){var multipliers=[3,4,5,6,7,8,9,1];total=0;for(i=0;i<8;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];}total=total%11;if(total==10){total=0;};if(total==vatnumber.slice(8,9))return true
else
return false;}else{if(!(/^\d{10}1/).test(vatnumber))return false;var total=0;var multipliers=[1,2,3,4,5,6,7,8,9,1,2];for(var i=0;i<11;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];if(total%11==10){var multipliers=[3,4,5,6,7,8,9,1,2,3,4];total=0;for(i=0;i<11;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];}total=total%11;if(total==10){total=0;};if(total==vatnumber.slice(11,12))return true
else
return false;}}function LUVATCheckDigit(vatnumber){if(vatnumber.slice(0,6)%89==vatnumber.slice(6,8))return true
else
return false;}function LVVATCheckDigit(vatnumber){if((/^[0-3]/).test(vatnumber)){if((/^[0-3][0-9][0-1][0-9]/).test(vatnumber))return true
else
return false;}else{var total=0;var multipliers=[9,1,4,8,3,10,2,5,7,6];for(var i=0;i<10;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];if(total%11==4&&vatnumber[0]==9)total=total-45;if(total%11==4)total=4-total%11
else if(total%11>4)total=14-total%11
else if(total%11<4)total=3-total%11;if(total==vatnumber.slice(10,11))return true
else
return false;}}function MTVATCheckDigit(vatnumber){var total=0;var multipliers=[3,4,6,7,8,9];for(var i=0;i<6;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=37-total%37;if(total==vatnumber.slice(6,8)*1)return true
else
return false;}function NLVATCheckDigit(vatnumber){var total=0;var multipliers=[9,8,7,6,5,4,3,2];for(var i=0;i<8;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=total%11;if(total>9){total=0;};if(total==vatnumber.slice(8,9))return true
else
return false;}function NOVATCheckDigit(vatnumber){var total=0;var multipliers=[3,2,7,6,5,4,3,2];for(var i=0;i<8;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=11-total%11;if(total==11){total=0;}if(total<10){if(total==vatnumber.slice(8,9))return true
else
return false;}}function PLVATCheckDigit(vatnumber){var total=0;var multipliers=[6,5,7,2,3,4,5,6,7];for(var i=0;i<9;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=total%11;if(total>9){total=0;};if(total==vatnumber.slice(9,10))return true
else
return false;}function PTVATCheckDigit(vatnumber){var total=0;var multipliers=[9,8,7,6,5,4,3,2];for(var i=0;i<8;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=11-total%11;if(total>9){total=0;};if(total==vatnumber.slice(8,9))return true
else
return false;}function ROVATCheckDigit(vatnumber){var multipliers=[7,5,3,2,1,7,5,3,2];var VATlen=vatnumber.length;multipliers=multipliers.slice(10-VATlen);var total=0;for(var i=0;i<vatnumber.length-1;i++){total+=Number(vatnumber.charAt(i))*multipliers[i];}total=(10*total)%11;if(total==10)total=0;if(total==vatnumber.slice(vatnumber.length-1,vatnumber.length))return true
else
return false;}function RSVATCheckDigit(vatnumber){var product=10;var sum=0;var checkdigit=0;for(var i=0;i<8;i++){sum=(Number(vatnumber.charAt(i))+product)%10;if(sum==0){sum=10};product=(2*sum)%11;}if((product+vatnumber.slice(8,9)*1)%10==1)return true
else
return false;}function RUVATCheckDigit(vatnumber){if(vatnumber.length==10){var total=0;var multipliers=[2,4,10,3,5,9,4,6,8,0]
for(var i=0;i<10;i++){total+=Number(vatnumber.charAt(i))*multipliers[i];}total=total%11
if(total>9){total=total%10}if(total==vatnumber.slice(9,10))return true
else
return false}else if(vatnumber.length==12){var total1=0
var multipliers1=[7,2,4,10,3,5,9,4,6,8,0]
var total2=0
var multipliers2=[3,7,2,4,10,3,5,9,4,6,8,0]
for(var i=0;i<11;i++)total1+=Number(vatnumber.charAt(i))*multipliers1[i];total1=total1%11
if(total1>9){total1=total1%10}for(var i=0;i<11;i++)total2+=Number(vatnumber.charAt(i))*multipliers2[i];total2=total2%11
if(total2>9){total2=total2%10}if((total1==vatnumber.slice(10,11))&&(total2==vatnumber.slice(11,12)))return true
else
return false}}function SEVATCheckDigit(vatnumber){var R=0;var digit;for(var i=0;i<9;i=i+2){digit=Number(vatnumber.charAt(i));R+=Math.floor(digit/5)+((digit*2)%10);}var S=0;for(var i=1;i<9;i=i+2)S+=Number(vatnumber.charAt(i));var cd=(10-(R+S)%10)%10;if(cd==vatnumber.slice(9,10))return true
else
return false;}function SIVATCheckDigit(vatnumber){var total=0;var multipliers=[8,7,6,5,4,3,2];for(var i=0;i<7;i++)total+=Number(vatnumber.charAt(i))*multipliers[i];total=11-total%11;if(total==10){total=0;};if(total!=11&&total==vatnumber.slice(7,8))return true
else
return false;}function SKVATCheckDigit(vatnumber){if(Number(vatnumber%11)==0)return true
else
return false;}