/**
* Change the message to be flashed on the canvas
*
* @param s String contining the new message.
* @see Graph2D#startedloading()
* @see Graph2D#finishedloading()
* @see LoadMessage
*/
public void loadmessage(String s) {
if (load_thread == null) load_thread = new LoadMessage(this);
load_thread.setMessage(s);
}
