private void getNextChangingElement(int a0, boolean isWhite, int[] ret) {
		// Local copies of instance variables
		int[] pce = this.prevChangingElems;
		int ces = this.changingElemSize;

		// If the previous match was at an odd element, we still
		// have to search the preceeding element.
		// int start = lastChangingElement & ~0x1;
		int start = (lastChangingElement > 0) ? (lastChangingElement - 1) : 0;
		if (isWhite) {
			start &= ~0x1; // Search even numbered elements
		} else {
			start |= 0x1; // Search odd numbered elements
		}

		int i = start;
		for (; i < ces; i += 2) {
			int temp = pce[i];
			if (temp > a0) {
				lastChangingElement = i;
				ret[0] = temp;
				break;
			}
		}

		if ((i + 1) < ces) {
			ret[1] = pce[i + 1];
		}
	}