i am sorry but i think i didn't explain you perfectly.
i want to impliment a feature which i seen in "referrer detector" plugin for wordpress
if you want to see how it works,
please search in google for "referrer detector"
and visit his page, it shows a welcome message at at top of the post
i want to impliment such feature,
even though its from php, it doesn't load with page, i think it loads after end of the page.
i want to impliment such feature