<script language="javascript">
if (!Check('cn',1))
{
alert("请正确键入URL!");
document.createurl.URL.focus();
return false;
}
else alert('OK');
function Check(str,diff)
{
switch (diff)
{
case 1:
var part = /.*\w+\.{1}\w+.*/;
}
if (part.test(str)) return true;
else return false;
}
</script>
if (!Check('cn',1))
{
alert("请正确键入URL!");
document.createurl.URL.focus();
return false;
}
else alert('OK');
function Check(str,diff)
{
switch (diff)
{
case 1:
var part = /.*\w+\.{1}\w+.*/;
}
if (part.test(str)) return true;
else return false;
}
</script>
http://www.cnblogs.com/Lostinet/archive/2008/01/31/1059527.html