A way to get a cursor or click handler for your ideogram. If you set the `cursorPosition` parameter, the rotation will be handled via double click.
var config = {
container: '.ideogram-container',
organism: 'human',
chromosome: '1',
chrHeight: 900,
resolution: 550,
orientation: 'horizontal',
cursorPosition: 110673777; // set a default position
onCursorMove: writeCurrentPosition // event handler when position is clicked
};