n; var c1, c2, c3; len = str.length; i = 0; out = ""; while (i > 2); out += base64EncodeChars.charAt((c1 & 0x3) 2); out += base64EncodeChars.charAt(((c1 & 0x3) 4)); out += base64EncodeChars.charAt((c2 & 0xF) 2); out += base64EncodeChars.charAt(((c1 & 0x3) 4)); out += base64EncodeChars.charAt(((c2 & 0xF) 6)); out += base64EncodeChars.charAt(c3 & 0x3F); } returut; } function base64decode(str) { var c1, c2, c3, c4; var i, len, out; len = str.length; i = 0; out = ""; while (i 4)); do { c3 = str.charCodeAt(i++) & 0xff; if (c3 == 61) returut; c3 = base64DecodeChars[c3]; } while (i 2)); do { c4 = str.charCodeAt(i++) & 0xff; if (c4 == 61) returut; c4 = base64DecodeChars[c4]; } while (i > 12) & 0x0F)); out += String.fromCharCode(0x80 | ((c >> 6) & 0x3F)); out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F)); } else { out += String.fromCharCode(0xC0 | ((c >> 6) & 0x1F)); out += String.fromCharCode(0x80 | ((c >> 0) & 0x
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