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dervondenbergen/cipher.js

Created February 25, 2015 23:18
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cipher.js
i=prompt('Please write the text to cipher:');
s=prompt('Steps to shift:');
t='';
var a = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
for (var l = 0; l < i.length; l++) {
n = a.indexOf(i[l].toUpperCase())
f=100
if (n>-1)
f=n+Math.floor(s)
if (f > 25)
f = f-26;
t += a[f] || i[l]
}
alert(t);
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