Credit Card Validation JavaScript Code

<div dir="ltr" style="text-align: left;" trbidi="on"> <div class="separator" style="clear: both; text-align: center;"> <a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhShecPv55mFBfx5UnmWsPiHQefMiI8hgT-PDaF0lUfQ-VJi06WAnt2ghq3SLmm1eiffznLyNw9Jgnf_RxH3KZNz7xlHVK18D-pAKQZg0NoENH5pDwBzJrls_UoxDrNvUe-07jDimoyY9M/s1600/WP_000124.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhShecPv55mFBfx5UnmWsPiHQefMiI8hgT-PDaF0lUfQ-VJi06WAnt2ghq3SLmm1eiffznLyNw9Jgnf_RxH3KZNz7xlHVK18D-pAKQZg0NoENH5pDwBzJrls_UoxDrNvUe-07jDimoyY9M/s200/WP_000124.jpg" width="150" /></a></div> <br /> <br /> <br /> // Credit Card Validation Javascript<br /> // copyright 12th May 2003, by Stephen Chapman, Felgall Pty Ltd<br /> <br /> // You have permission to copy and use this javascript provided that<br /> // the content of the script is not changed in any way.<br /> <br /> function validateCreditCard(s) {<br /> function cardval(s) {<br /> // remove non-numerics<br /> var v = "0123456789";<br /> var w = "";<br /> for (i=0; i < s.length; i++) {<br /> x = s.charAt(i);<br /> if (v.indexOf(x,0) != -1)<br /> w += x;<br /> }<br /> // validate number<br /> j = w.length / 2;<br /> if (j < 6.5 || j > 8 || j == 7) return false;<br /> k = Math.floor(j);<br /> m = Math.ceil(j) - k;<br /> c = 0;<br /> for (i=0; i<k; i++) {<br /> a = w.charAt(i*2+m) * 2;<br /> c += a > 9 ? Math.floor(a/10 + a%10) : a;<br /> }<br /> for (i=0; i<k+m; i++) c += w.charAt(i*2+1-m) * 1;<br /> return (c%10 == 0);<br /> }<br /> <div> <br /></div> </div>

HOME Java Credit Card Validation JavaScript Code

// Credit Card Validation Javascript // copyright 12th May 2003, by Stephen Chapman, Felgall Pty Ltd // You have permission to copy...

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