Different Content without Reload

Hi there,

first of all the pre sales question and contact form on your website doesn’t work. It gives me this error no matter what I do: “One or more fields have an error. Please check and try again.” – tested different browsers, incognito windows without browser plugins and different devices. Very annoying!

My question:

Is it possible to show the conditional content without a reload of the page?

For example if I choose an option in a dropdown, can the content show below without an automatic reload of the page?

Thank you! ??