function _adjust(){
			// adjust popup position
			if (this.oPopup) {
				var oParentDomRef = this._currentControl.getDomRef();
				this.oPopup.setPosition(this.getMyPosition(), this.getAtPosition(), oParentDomRef, this.getOffset(), this.getCollision());
			}
		}
Adjust position of the already opened Callout window.
Call this method each time when the size of the opened
Callout window may be changed due to new or changed
contents.

@type void
@public