code: public int getAligSeq(Point point) {
  
  
  		int i1 = getSeqPos(0, point);
  
  
  		Point t1 = getPanelPos(0,i1);
  
  		if ( Math.abs(t1.x - point.x) <= DEFAULT_CHAR_SIZE &&
  				Math.abs(t1.y-point.y) < DEFAULT_CHAR_SIZE ) {
  			return 0;
  		}
  
  		int i2   = getSeqPos(1,point);
  		Point t2 = getPanelPos(1,i2);
  
  		if ( Math.abs(t2.x - point.x) < DEFAULT_CHAR_SIZE &&
  				Math.abs(t2.y-point.y) < DEFAULT_CHAR_SIZE ) {
  			return 1;
  		}
  
  		//System.out.println(" i1: " + i1 +" t1 : " + Math.abs(t1.x - point.x) + " " + Math.abs(t1.y-point.y));
  		//System.out.println(i2);
  
  
  		return -1;
  	}
docs: returns the AligSeq (0 or 1) for a point
  returns -1 if not over an alig seq.
  @param point
  @return which of the two sequences a point on the panel corresponds to