function launch_demo() {
  if($('#email-permission').val() == "on" && (($('#email').val() == "your e-mail address") || ($('#email').val() == ""))) {
    alert('Please enter a valid e-mail address, or uncheck the contact checkbox. Thanks!');
    return false;
  }
  else if ($('#email-permission').val() == "on") {
    cm_subscribe($('#email').val());
    return true;
  } else {
    return true;
  }
}

function cm_subscribe(email) {
	var url = '/welcome/proxy?uri=' + encodeURIComponent('http://api.createsend.com/api/api.asmx/Subscriber.Add?ApiKey=10331ab0471257edf6c116f8afee0de5&ListID=57f0aa0ffb7a86b68adc48b044e57151&Email='+ email +'&Name=Demo');
  $.ajax({
    type: "GET",
    url: url,
    async: false
  });
}

function switchTourTabs(e) {
	selectedTab = e.target.href.split('#')[1];
	$('.tour-section').fadeOut();
	$('#' + selectedTab + "-content").fadeIn();
	$('#tabs a').removeClass('active');
	$('#' + e.target.id).addClass('active');
	return false;
}

function switchHelpTabs(e) {
	selectedTab = e.target.href.split('#')[1];
	$('.help-section').fadeOut();
	$('#' + selectedTab + "-content").fadeIn();
	$('#tabs a').removeClass('active');
	$('#' + e.target.id).addClass('active');
	return false;
}

function toggleAnswer(e) {
  $(e.target).siblings('.answer').slideToggle();
  $(e.target).toggleClass('active');
  return false;
}