code: function(oThis, sDir){
  		if (!oThis.sCurrentFocusedStepRefId) {
  			return;
  		}
  
  		if (sDir && !RoadMapRenderer.isVisibleRef(oThis, oThis.sCurrentFocusedStepRefId)) {
  			focusStep(null, oThis, sDir);
  		} else {
  			document.getElementById(oThis.sCurrentFocusedStepRefId + "-box").focus();
  		}
  	}
docs: Sets the focus on the current focused step again. If the current focused step is not visible anymore the following step in the given direction is focused. Allowed directions are: next, prev, first, last