function render() {
$('#viewport').append(presidentViewTpl);
partyCountChart.render('#party-count-chart', presidentDW.parties);
ageChart.render('#age-chart', presidentDW.presidents);
ageAtOfficeChart.render('#age-at-office-chart', presidentDW.presidents);
$('#president-count').text(presidentDW.presidents.top(Infinity).length);
$('#slider').on('input change', function (ev) {
var year = $(this).val();
$('#start-year').text(year);
presidentDW.filterByBeforeBirthYear(year);
$('#president-count').text(presidentDW.presidents.top(Infinity).length);
});
}
$('#slider').on('input change', function (ev) {
var year = $(this).val();
$('#start-year').text(year);
presidentDW.filterByBeforeBirthYear(year);
$('#president-count').text(presidentDW.presidents.top(Infinity).length);
});