score:0

You can use Highcharts.setOptions() to setup the default options, and change them individually if you need so, when creating the charts.

Like this: http://jsfiddle.net/gh/get/jquery/1.7.2/highslide-software/highcharts.com/tree/master/samples/highcharts/members/setoptions/

Reference: http://api.highcharts.com/highcharts#Highcharts.setOptions%28%29

score:2

This 

 var chart = new $('#Ejemplo').Highcharts.Chart(options_diputados);

is incorrect because you should use 

//1
$('#Ejemplo1').highcharts(options_diputados);

//2
$('#Ejemplo2').highcharts(options_diputados);

//etc

or

 var chart1 = new Highcharts.Chart(options_diputados);

 var chart2 = new Highcharts.Chart(options_diputados);

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