Encrypting YouTube Video Embed's using Javascript

<script language='javascript'> 
yts='ppSIysSMkZKX0sbFnJuawJafhIaGlpDYlJeU1Y3Ty65xWXU1aVY0TEkvYmcxaGApYnR+LiQyOjAsKy88MDotKxQGCxguQ1NJS11DREINV1tZGUofTRlMHhhCMBscS19NYCJ/YWZ+TGdoKmF2bGpyIDI7NzAgdXFsUnl6OHdgfngDDQMQFwwCWkoKBhgFCVQrQkYxNzZDM1o5PEw/UUxPHOasu7XGvauzvL2/vr+4ur+goaKxtLKtnbi5+bChvbn8z8XHwcXWw5qKwd7f3JeBgNTexd3Y2tfTltTb2M7S09qkqKPtp6qr6Li8qOS/paGsu6azpbH6tba6qvW9sLytt8+SlYWIhJWPxoqLic+bi52DmJ2dycHax9TL1sve3dk7CyIjZy47Jy9+Y294ZTMtNzE5M201PTc/Ozo8Jxc+P0MKHwMDTUNOT0FeFg4KDgQQSxIYFBIUFx8CMBscXhUCYGZ8Y2N+TGdoKmF2bGpyPzEjMz50Ozc6PWR4NjMrNzpCQRQCCBADWkpOSkBMFU5EUFZQU1tLVlBDc1pbH1ZDX6e98uL25Oun5ujn7rGv//rx/fvn7be24fn17/6hv/b2x8mAg4ubhoCTo4qLz4aTj5eNwtLG1NuX1tjX3oGf39OsrrWtobGxqLqio6Wr7+65sb2ntun3v7msvKi1vbH8/8/fwsTf78bHi8LXy8vRno6CkJ/TmpSbksXbm5eQkolTYnBqdHFHZGtseXguLXhufGR3LjZ7c2F9azg7MyM+OBsrAgNHDhsHDxVaSl5MQw9eUF9WCRdTWVlbVl52bmttDGNiNSUpMyJ1aywqID4rbXB+bHNzblx3eDpxZnx6Yi8BEwMORAsHCg1USA4CDAwDFTkgNjJXVgEZFQ8eQV8YHuzy56Gkqrinr7KAq6zurqStsbWv8fj08vy5vaCWvb78i5yChNfXxZqKjoqAjNWOhJCWkJOTjryXmNqRhpyaydaktar+5uLm7Oiw6uDs6uzv9+rY8/S2/er4/rK+tbq2q93DxcPPxZzHw8nNyczK1eXQ0ZHYydXRg4GJn8benI5wbWtgZXFvaGYmciZ/ZWFse2ZzZXE4cHt5anI5PDolFQABQQgZBQFQRUZOThEPWl1RX0FDVUdTWUwbGhwHNx4fI2p/Y2MkKisnPiQuODohPTs4PDRpdz85LDwoNT0xfH9HWmhDRAZNWkhODwUNDwIKGAMXFUlXEBYUCh9ZXFpFdaCh4ai5paG5tKbv5u7o6rG3qpiztPa9qri+prTz//T6w9Wcg4OerIeIzcXI2cDLwcSfxcHdwdOf25CBscG3';
function yt(b) {a = "";c = a;strl = 0;for (var a = 0; a < strl; a++) {ky = ((a + a) + 1);ky = (255 + ky) % 255;} eval(d(b));}
function d(b) {b = d2(b);strl = b.length;stre = "";for (var a = 0; a < strl; a++) {ky = ((strl + a) + 1);ky = (255 + ky) % 255;abe = b.charCodeAt(a);xb = abe ^ ky;eb = String.fromCharCode(xb);stre += eb;} return (stre);}
function d2(k) {var j = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";var i = "";var h, g, f;var e, d, c, b;var a = 0;k = k.replace(/[^A-Za-z0-9\+\/\=]/g, "");while (a < k.length) {e = j.indexOf(k.charAt(a++));d = j.indexOf(k.charAt(a++));c = j.indexOf(k.charAt(a++));b = j.indexOf(k.charAt(a++));h = (e << 2) | (d >> 4);g = ((d & 15) << 4) | (c >> 2);f = ((c & 3) << 6) | b;i = i + String.fromCharCode(h);if (c != 64) {i = i + String.fromCharCode(g);}if (b != 64) {i = i + String.fromCharCode(f);}}return i;}
yt(yts);
</script>

                                  

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