I am really struglling tring to get this to work what i what is if my php script returns success.

echo success

I want it to should a message that says congratulations its all setup but stay for aleast 5 seconds but it never seems to work i have tried elay etc but still getting issues please help.

here is my code it works but for about a second it then redirects far to quick to read it.

 if($.trim(data) == 'Congratulations'){
setTimeout(function(){
    $('#congrats').fadeIn(1000,function(){
        window.location.href='http://example.co.uk/tour/first-time-users';
    });
},5500);