Set min Date from another date
HTML
Inicio <input type="date" id="start_date">
<br>
Fin <input type="date" id="end_date">
JavaScript
$('#start_date').change(function(){
var start_date = $(this).val();
$('#end_date').prop({
min: start_date
})
});
/* prop() method works since jquery 1.6, if you are using a previus version, you can use attr() method.