if condition in sidebar

Hello.

I have this code [][/] on page and work perfectly! so i want now if i can in sidebar check if the form is properly completed on the page and then will echo some word in sidebar. for example something like this in sidebar:

if (isset($_POST[‘csp_submit’])) {
if ($_POST[‘csp_input’] == $password AND $password != ”) {
echo ‘password is corect and echo some words’;
}
else
{
echo ‘password is wrong’;
}
}
else
{
echo ‘you must enter pasword on page’;
}

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