Javascript [slah ] / charactor to html code convert

hi guys, I need a little help

I want to convert my url using javascript.

http://mysite.com/my-post-title

Code (markup):

to

http%3A%2F%2Fsmysite.com%2Fmy-post-title

Code (markup):

also I want to assign a function to use the converted code out of javascript.

is it possible?

 

http://www.w3schools.com/jsref/jsref_encodeuricomponent.asp

 

thanks this is what I need.