2 seperate website

i just installed a new version of ehcp 0.30.9.
acctually i am using for more that a year i think with no problem but now i want to have 2 real seperate site not a directory in my original site for example

www.ehcp.net <<< my original site
my.ehcp.net <<< another seperate site

how can i do this?

i think you didnt get my question,

when create subdomains it is create domain called subdomains in root directory

Yes that is right,

look inside the subdomain folder and you will see one more folder which the domain area that you added,

example, a folder called: my
for ---->my.ehcp.net