title: JavaScript date object from <input type=date>
body: <p>I'm trying to create a javascript date object in the focus.add_days function to add some days to the given date in a  element.
  the problem is that the javascript object doesn't expect a string "Y-m-d" so how can I create the date object without parsing the string "Y-m-d" into pieces, or is the only way?</p>
  
  <pre><code>trigger = {
  fecha_ini: function(){
      $('input[name="fecha_ini"]').on('change',function(){
        console.log('hi');
        var fecha_fin = $(':input [name=fecha_fin]');
        var min = $(this).val();
        //here is where i pass the "Y-m-d" string as the date argument
        var max = fechas.add_days(min,31*4);
        fecha_fin.attr('min',min);
        fecha_fin.attr('max',max);
        fecha_fin.val('');
      })
    }
  };
  
  fechas = {
    add_days: function addDays(date, days) {
      //here is where i use the string "Y-m-d" to create the date object, but obviusly doesnt work
      var result = new Date(date);
      result.setDate(date.getDate() + days);
      return result;
  }
  };
  
  trigger.fecha_ini();
  </code></pre>