HI all...this is a very nice tutorial.....When sum1 leaves ur site...a pop up window appears and A thank you note will be written on it....(how u design it) Paste this using notepad:-
CODE
<script LANGUAGE="JavaScript">
<!-- Begin function leave() { window.open('http://www.yourserver.com/Thanyou.html','','toolbar=no,menubar=no,location=no,height=500,width=500'); } // End --> </SCRIPT>