1 - Convert string to Date (dd/mm/aaaa) var from = $("#datepicker").val().split("-"); var f = new Date(from[2], from[1] - 1, from[0]); 2 - Convert now date to Date var time = Date.now(); var date = new Date(time); 3 - Fix var popup = new Foundation.Reveal($('#myElement')); popup.open();