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this code is for a shoutbox administrators page. instead of showing the login page it shows this error:
Fatal error: Call to undefined function: isvalidcookie() in /home/jlm/public_html/dan/shoutbox/index.php on line 79
the code for line 79 is
<body bgcolor="#FFFFFF" text="#000000"<? if(!isValidCookie($shoutbox_auth)) {echo "onload=\"document.login.password.focus();\"";}?>>