Quick Function wrote:
For the <input type="file">, can I select directory? Multiple directories?
Thanks,
qq
As mentioned, you can not select multiple files or directories using <input
type="file">. As a result, another solution is necessary. The following will
only work in the most modern of browsers (IE6SP1, Gecko-based browsers, Opera
7.53, perhaps others you will need to test):
<script type="text/javascript">
function anotherFile(lnk ) {
if (document.creat eElement &&
lnk.insertBefor e &&
lnk.parentNode) {
var finp = document.create Element('input' );
var brk = document.create Element('br');
if (finp && brk) {
finp.type = 'file';
finp.name = 'file' + (new Date()).getTime () + Math.floor(100 *
Math.random());
lnk.parentNode. insertBefore(fi np, lnk);
lnk.parentNode. insertBefore(br k, lnk);
}
}
return false;
}
</script>
<form name="myFormNam e" id="myFormId">
<input type="file" name="file1">
<br>
<a href="#" onclick="return anotherFile(thi s);">Another File</a>
</form>
Notes:
- "(new Date()).getTime () + Math.floor(100 * Math.random())" is intended to
generate a unique form element name. This should not present much of a problem
on the server, most server-side technology has something like
Request.subkeys ("file") that allows you to find all inputs that start with a
particular string. The other ways to do this is have a global variable that
gets incremented to produce "file2", "file3", etc.
- The code as written depends on the "Another File" link coming after the
<input>. This allows the use of insertBefore() to add another file input. The
other possibilities would be to have a dummy <span> under the last input as a
marker to insertBefore(), or simply appendChild() on the <form>.
- As already mentioned this only works in the most modern browsers.
- I haven't actually tested this to upload files. Some browsers may have a
problem actually submitting form inputs added to the form using
insertBefore().
--
Grant Wagner <gw*****@agrico reunited.com>
comp.lang.javas cript FAQ -
http://jibbering.com/faq 
