function mepr_base64_decode(encodedData) {
var decodeUTF8string = function(str) {
// Going backwards: from bytestream, to percent-encoding, to original string.
return decodeURIComponent(str.split(”).map(function(c) {
return ‘%’ + (’00’ + c.charCodeAt(0).toString(16)).slice(-2)
}).join(”))
}
if (typeof window !== ‘undefined’) {
if (typeof window.atob !== ‘undefined’) {
return decodeUTF8string(window.atob(encodedData))
}
} else {
return new Buffer(encodedData, ‘base64’).toString(‘utf-8’)
}
var b64 = ‘ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=’
var o1
var o2
var o3
var h1
var h2
var h3
var h4
var bits
var i = 0
var ac = 0
var dec=””
var tmpArr = []
if (!encodedData) {
return encodedData
}
encodedData += ”
do {
// unpack four hexets into three octets using index points in b64
h1 = b64.indexOf(encodedData.charAt(i++))
h2 = b64.indexOf(encodedData.charAt(i++))
h3 = b64.indexOf(encodedData.charAt(i++))
h4 = b64.indexOf(encodedData.charAt(i++))
bits = h1 << 18 | h2 << 12 | h3 <> 16 & 0xff
o2 = bits >> 8 & 0xff
o3 = bits & 0xff
if (h3 === 64) {
tmpArr[ac++] = String.fromCharCode(o1)
} else if (h4 === 64) {
tmpArr[ac++] = String.fromCharCode(o1, o2)
} else {
tmpArr[ac++] = String.fromCharCode(o1, o2, o3)
}
} while (i < encodedData.length)
dec = tmpArr.join('')
return decodeUTF8string(dec.replace(/\0+$/, ''))
}
jQuery(document).ready(function() {
document.getElementById("meprmath_captcha-68ad83de204c3").innerHTML=mepr_base64_decode("NiArIDEgZXF1YWxzPw==");
});