Using <input type = 'button> rather than <input type = 'submit'>

Here is a simple form file that needs to pass a variable - $hello - from the form to a new function. Unfortunately, it doesn't. When you click the submit button, the URL looks like this: http://localhost/test5.php?action=1&hello= It should have the variable there after the "hello=" I suspect it's something to do with parent.location. Looking for a solution. Here's the script: <head> </head> <body bgcolor=white> <? define(INITIAL_PAGE,0); define(SELECT,1); function initial_page(){ global $PHP_SELF,$hello; print "<form action = '$PHP_SELF?action=1' method = 'post' name = 'hello'>"; print "<input type='text' name='hello'>"; print "<input name = 'hello' type='button' value='Submit' onClick=\"parent.location='$PHP_SELF?action=1&hello=$hello'\">"; print "</form>"; } function select(){ global $hello; print "Hellooooooooooo, $hello!"; } initial_page(); switch($action){ case INITIAL_PAGE: initial_page; break; case SELECT: select(); break; default: die ("Hello, can't find that function."); } ?> </body> </html> The thing is that if you simply hit "enter" - rather than click the "submit" button, the first directive in the <form> tag is invoked, and the value of the $hello variable IS passed. regards Martin Cameron