alter box using php -

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please

i have web page on there sign in . once enter login detail , click on submit button , goes next page loginauthentic.php page , check database , if user exit redirect main page again .

now want once redirected main page . on main page should display message or alert box " login in "

and alter box or message should come in front image on main page should visible in background

not sure understand completley, if want change content depending on whether user logged in or not, need save login status in session use simple conditional detect whether session variable set , echo out correct markup.

if($_session['logged_in']){  echo 'something'; } else {  echo 'something else'; }

however not know if asking...


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