<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title></title>
<script type="text/JavaScript">
function checkfile(file)
{
var checkfiles=new RegExp("((^http)|(^https)|(^ftp)):\/\/(\\w)+\.(\\w)+");
return checkfiles.test(file);
}
function files()
{
var frm = document.forms["formname"];
var str = frm.filename.value;
if(checkfile(str))
{
alert('验证成功！');
//return true;
}
else
{
alert("验证失败！");
//return false;
}
}
</script>
<body>
<form method="POST" action="" >
</tr>
</form>
</body>
</html>
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