Created
November 22, 2013 20:41
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| if (!window.btoa) { | |
| // Source: http://www.koders.com/javascript/fid78168FE1380F7420FB7B7CD8BAEAE58929523C17.aspx | |
| btoa = function (input) { | |
| var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/='; | |
| var result = ''; | |
| var chr1, chr2, chr3; | |
| var enc1, enc2, enc3, enc4; | |
| var i = 0; | |
| do { | |
| chr1 = input.charCodeAt(i++); | |
| chr2 = input.charCodeAt(i++); | |
| chr3 = input.charCodeAt(i++); | |
| enc1 = chr1 >> 2; | |
| enc2 = ((chr1 & 3) << 4) | (chr2 >> 4); | |
| enc3 = ((chr2 & 15) << 2) | (chr3 >> 6); | |
| enc4 = chr3 & 63; | |
| if (isNaN(chr2)) { | |
| enc3 = enc4 = 64; | |
| } else if (isNaN(chr3)) { | |
| enc4 = 64; | |
| } | |
| result += chars.charAt(enc1) + chars.charAt(enc2) + chars.charAt(enc3) + chars.charAt(enc4); | |
| } while (i < input.length); | |
| return result; | |
| }; | |
| } |
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