text: var config = {
  	defaults: {
  		start: 0,
  		end: 100,
  		log_start: 0.001,
  		log_end: 100,
  		ystart: 0,
  		yend: 100,
  		log_ystart: 0.001,
  		log_yend: 100,
  		tick: 10,
  		slider: {
  			min: 0,
  			max: 100,
  			step: 1
  		},
  		nb_ticks: 30
  	},
  	nb_iterations: 10,
  };
  