Google Maps Polyline Encoder and Drawing Tool

or: "How to draw encoded polylines?"
or: "2 Steps for polylines encoding for GMaps"

Out there are some sites that allows you to draw and/or encode polylines, like these:

1. Encoder javascript
   http://facstaff.unca.edu/mcmcclur/GoogleMaps/EncodePolyline/
2. Polyline and polygons drawing tool
   http://gmaps-samples.googlecode.com/svn/trunk/poly/mymapstoolbar.html
   
3. Google's encoder
   http://code.google.com/apis/maps/documentation/polylineutility.html

I decided to join them in one single mashup: