Space bar before performing a Moon check

Question

I have a function that performs a Luhn check when writing to a card when submitting a form.

<script language="javascript"> function Calculate(Luhn) { var sum = 0; for (i=0; i<Luhn.length; i++ ) { sum += parseInt(Luhn.substring(i,i+1)); } var delta = new Array (0,1,2,3,4,-4,-3,-2,-1,0); for (i=Luhn.length-1; i>=0; i-=2 ) { var deltaIndex = parseInt(Luhn.substring(i,i+1)); var deltaValue = delta[deltaIndex]; sum += deltaValue; } var mod10 = sum % 10; mod10 = 10 - mod10; if (mod10==10) { mod10=0; } return mod10; } function Validate(Luhn) { var LuhnDigit = parseInt(Luhn.substring(Luhn.length-1,Luhn.length)); var LuhnLess = Luhn.substring(0,Luhn.length-1); if (Calculate(LuhnLess)==parseInt(LuhnDigit)) { return true; } alert("\n\nYou have mis-typed your card number! \nPlease check and correct.\n\n") return false; } 

I also have a function that removes any spaces that could be entered in the onblur card number.

 function stripChar(sValue, sChar) { var i, tempChar, buildString; buildString = "" for (var i=0; i<sValue.length; i++) { tempChar = sValue.charAt(i); if (tempChar != sChar) { buildString = buildString + tempChar; } } return buildString; 

How to combine functions so that spaces are removed and the card number is marked on the screen.

Answer 1

In your onblur function you can use:

 Validate(stripChar(sValue, sChar));