I'm trying a three page system to check if a username has been registered already I'm having trouble on the second page, which is what I need help with. The code I have so far is: Page one (registration page): <head><script type="text/javascript"> function myPopup() { window.open("checkusername.php", "popUp", "status = 1, height = 300, width = 300, resizable = 0" )} </script></head> <body> <p onClick="myPopup()">CLICK ME!</p> <form name=myform> <input name=username type=text value='hi!'> </form></body> Code (markup): Page 2 (checkusername.php) takes whatever is in the "username" input on the original page and puts it in the input on it's own page (also named "username"). <head> <script> document.myform.username.value = opener.myform.username.value; </script> </head> <form name='myform' action='checkusername2.php' method='post'> <input type='text' name='username' value=''> </form> Code (markup): So far, the popup opens just fine and displays the username input, but the value doesn't transfer. Javascript is not my strong point, so any help would be awesome here -Submerged