Friend, first of all thank you! It works perfectly.
Now, what I want to do is show those 3 values in 3 different "gauge" graphs (a graph for each value). I have already drawn the graphics, as I showed in this script:
I also have a function called "actualizarValor" that will update the value of each chart. The problem is that I do not know how to take the instance of each graph to pass the value to it.
I tried with $ ("#idContainer").Highcharts() but it does not work.