[OpenLayers-Users] Tool tip on drawing polygon

[Lance Dyas]

Double clicking to end a polygon when drawing it while easy .. is not 
totally obvious ... if I could give a title to the elements as they are 
being drawn  so that users who pause wondering what to do next could get 
a message that might solve the issue in a very clean fashion... anyone 
have a clue how to do this?

I also want to customize the nodes (really just draw smaller squares 
instead of circles for the nodes)