Decoding a string

Decoding a string, in javascript can be done by the usage of its inbuilt function

unescape

we need to decode a string say when we have kept the encoded one and have to represent to client end
So to decode the string we need to use this function,
the simple code goes as:

document.write(unescape('gr8%20puneet.aspx?pra=t%C3%A5l&pcar=great'));

the output will be

gr8 puneet.aspx?pra=tål&pcar=great