Methods and apparatuses to set up a poll and presenting poll results through electronic communication media. Then, one color signal is sequentially written into rows of the liquid crystal pixels while the gate lines are sequentially selected. In a preferred embodiment, the inside market will stay located relative to center of the trading screen and the price levels associated to the inside market will move as the market conditions fluctuate. By utilizing the first and second trees, efficient searching for best matches can be achieved while allowing for dynamic modification of the data.