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To design a webpage having two tables and two canvas to plot the data in the table. The two tables and the canvas are different but very similar so it is just like programming for one table and one canvas. The table each row has the record of the starting date/time and ending date/time of certain subject. The canvas will have time as horizontal axis and the subject as vertical axis. For each row record in the table, the canvas needs to generate a horizontal bar starting from the starting date and ending at the ending date of that record's subject. There would be height parameter for each subject so on the vertical axis, the bars will be arranged vertically following the heights. The table data is to be stored to and retrieved from the mySQL database.