How do you change what website you host with apache?

I use apache to host my website but I have many different ones and can only host one at a time.How do you change what website you host with apache?You need all the domain's dns set up correctly on the server. Then you need to set up a document root section for each site name. Ideally set up an include directory for this, most Apache distributions have a vhosts directory for this already. Then put one file with document root details for each host into the vhosts directory.