javascript - Encoding and decoding within bookmarklet -


i want create bookmarklet lengtens shorte.st links using website.

example link: http://sh.st/**abcde** has turned 

http://longurl.org/expand?url=http%3a%2f%2fsh.st%2**abcde**

i created following code:

javascript:(function(){var str = window.location.tostring();var str1 = str.substring(13,18);var str2 = "http://longurl.org/expand?url=http%3a%2f%2fsh.st%";var str3 =str2.concat(str1);alert(str3);window.location=str3;})();

code bad, know, i've never written in javascript before. works. except 1 thing: % in bookmarklet decoded /. , dont want happen. guess somewere along way supposed encode string, i'm not sure. appreciated.


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