When you go to a page and you send variables
for example:
mi_page.php?my_var1=26&my_var2=Joan
You can access them using this function:
echo $HTTP_GET_VARS["my_var1"]; (the same as $HTTP_GET_VARS[0] )
would output --> 26
echo $HTTP_GET_VARS["my_var2"]; (the same as $HTTP_GET_VARS[1] )
would output --> Joan
If you have sent those vars using a form and the POST method, then you'll have to use this -->
echo $HTTP_POST_VARS["my_var1"];
would output --> 26
echo $HTTP_POST_VARS["my_var2"];
would output --> Joan
I hope you meant that...

otherwise try again ;)
bye!