file: bestimmte datei-endung... - javarea.de Forum powered by javarea.de

HTML-Quelltext

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<html>
<head>

<script language="JavaScript" type="text/javascript">
<!--
function datei_test()
{
	var dat = document.forms['upload'].elements['datei'].value;

	if (/(\\.gif$)|(\\.jpg$)|(\\.png$)/.test(dat.toLowerCase()) == false)
	{
		alert('Unerlaubte Datei!');
		return false;
	}

	return true;
}
//-->
</script>

</head>
<body>

<form name="upload" action="" method="post" onsubmit="return datei_test();">
  <input name="datei" type="file" size="30" value="" />
  <input name="submit" type="submit" value="senden" />
</form>

</body>
</html>