how do control my php cms message ?

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PHP

message

hi all

my cms message some time appear in page that php code execute in it (php code in index.php and message appear in top of index.php) , and some time they appear in white page ...

now i want all message of my cms appear in same place (like popup div or one page or else)

i want a php function that get 2 string parameter (title and message body) and then show message

if i need to use javascript or jquery or like these please tell me how to use completely because i do not have any knowlegment about they ...


any some one can help me ?

please help me

thanks a lot