I am not even sure that this is possible, but here it is.
I want user to fill the form, and once he goes to the field
<label for="pos">My possition</label>
<input type="email" id="pos" name="clients_position">
I want to request his position and receive from him a Google Maps coordinate in such format "40.417035, -3.685389", ideally I want them automatically added to the input field.
Just did first basic course on JS in T3H and I am totally lost. HTML and CSS is a walk in a park compared to this, so I need some directions.