function compareByID(oControl1, oControl2) {
		return oControl1.getId() < oControl2.getId() ? -1 : 1;
	}
Compares the IDs of two different controls lexicographically.

@param {sap.ui.core.Control} oControl1 - The first control
@param {sap.ui.core.Control} oControl2 - The second control
@returns {number}
  <code>-1</code> if the ID of the first control is lexicographically smaller than the ID
  of the second control; <code>1</code> otherwise.