Start, brake warning light, Topaz/Tempo

I have a problem starting my Mercury Topaz (exactly same car as Ford Tempo). When i turn the key to the start position the starter switch dont
click, and the starter dont turns at all. But in the start postion the "brake warning" lights turn on. What could be wrong?. Is there some kind of security device that disable the starter when there is an error on the brake system?.
I have checked that there is enough brake fluid in the system, and the brake is hard as normal. Is it just the starter switch or is someting more serious wrong?.
Best Regards.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.