To have this web site to work at its best for you we sometimes have to send small text files to your computer. All mayor websites do the same.
A cookie is a small text file that the website you are visiting asks to save on your computer.
Cookies are used on many websites to allow visitors to use various functions. The information contained in cookies can be used to track how users are surfing.
Under the Electronic Communications Act, all visitors to a website with cookies must have access to information stating that the website contains cookies and the purpose for which cookies are used. Visitors must also consent to cookies being used.
You can control and delete cookies whenever you want.
Read more on: http://www.pts.se/en-GB/Industry/Regulations/Legislation/Electronic-Communications-Act/FAQ-about-cookies/
You can delete all cookies on your computer and you can setup you browser to not receive any cookies. In that case you might need to make the setups every time you enter a web site and some services or functions may not work.