public Gridlet get(int gridletId, int userId) {
        Gridlet gl = null;
        
        Iterator<Gridlet> iter = super.iterator();
        while (iter.hasNext()){
        	gl = iter.next();

        	if (gl.getGridletID()==gridletId && gl.getUserID()==userId) {
        		return gl;
        	}
        }
        
        return gl;
    }