Free Javascript decryptor:
EXEMPLE:
From this encrypted text: <Script Language='Javascript'>
<!--
document.write(unescape('%54%68%69%73%20%69%73%20%61%6E%20%65%78%65%6D%70%6C%65%20%6F%66%20%65%6E%63%72%79%70%74%65%64%20%74%65%78%74%20%49%27%76%65%20%65%6E%63%6F%64%65%64%20%74%6F%20%70%72%65%76%65%6E%74%20%75%6E%77%61%6E%74%65%64%20%76%69%77%65%72%73'));
//-->
</Script>
To this decrypted text: This is an exemple of encrypted text I've encoded to prevent unwanted viewers