// Code based on http://www.aardwulf.com/tutor/base64/ 

function base64_encode(input) 
{ 
var string = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; 
var output = ""; 
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; 
    output = output + string.charAt(enc1) + string.charAt(enc2) + string.charAt(enc3) + string.charAt(enc4); 
    chr1 = chr2 = chr3 = ""; 
    enc1 = enc2 = enc3 = enc4 = ""; 
    } 
while (i < input.length); 
return output; 
} 



function base64_decode(input) 
{ 
var string = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; 
var output = ""; 
var chr1,  chr2,  chr3 = ""; 
var enc1,  enc2,  enc3,  enc4 = ""; 
var i = 0; 
do 
    { 
    enc1 = string.indexOf(input.charAt(i++)); 
    enc2 = string.indexOf(input.charAt(i++)); 
    enc3 = string.indexOf(input.charAt(i++)); 
    enc4 = string.indexOf(input.charAt(i++)); 
    chr1 = (enc1 << 2) | (enc2 >> 4); 
    chr2 = ((enc2 & 15) << 4) | (enc3 >> 2); 
    chr3 = ((enc3 & 3) << 6) | enc4; 
    output = output + String.fromCharCode(chr1); 
    if (enc3 != 64) 
        output = output + String.fromCharCode(chr2); 
    if (enc4 != 64) 
        output = output + String.fromCharCode(chr3); 
    chr1 = chr2 = chr3 = ""; 
    enc1 = enc2 = enc3 = enc4 = ""; 
    } 
while (i < input.length); 
return output; 
}

function ml(s,t)
{
	var x = base64_decode(s);
	if (t == undefined)
		t = x;
	return '<a href="m' + 'ai' + 'lt' + 'o:' + x + '">' + t + '</a>';
}