// contains some utility functions of the project function getHeightIncrement(num_input, num_output, height, default_interval) { var left_side_interval = height / num_input; var right_side_interval = height / num_output; if(left_side_interval < default_interval) { return (num_input+1) * default_interval; } else if(right_side_interval < default_interval) { return (num_output+1) * default_interval; } else { return height; } } var inclueJQuery = "