A DatePicker helps people to enter calendar data into form fields. This GeoPicker helps people to easily enter latitude, longitude, postal code, etc. A popup with a Google Map lets the user search for the requested location and finetune the result by using a drag & drop marker. Another button click returns the resulting geodata back to your application or directly into the form field(s).
Currently supports English, Spanish, French, German, Russian & Chinese. - But you can also define your own language strings.
Check http://api.mygeoposition.com/ for an extensive API documentation and many examples for the different configuration parameters. It's up to you whether integration is a task of 2 minutes or you play around with all the configuration possibilities to perfectly please your needs.