The proper way to mark up changes to an HTML document, when you wish to retain the old content while displaying the new.
I <del>hate</del> <ins>LOVE</ins> my new iPod nano.The browser defaults are usually a strikeout/cross-through of del, and an underline for ins.
Doesn't take any JavaScript or anything. You just have the form's target attribute match the iframe's name attribute.
<form action="iframe.php" target="my-iframe" method="post">
<label for="text">Some text:</label>
<input type="text" name="text" id="text">
<input type="submit" value="post">
</form>
<iframe name="my-iframe" src="iframe.php"></iframe>The outer page doesn't even reload. But it might appear to at first glance since many browsers run the page-loading spinner in the tab when an iframe reloads.
<a href="http://chriscoyier.net" target="_blank">This link will open in new window/tab</a><a href="http://chriscoyier.net" onkeypress="window.open(this.href); return false;">This link will open in new window/tab</a>
File inputs can have an attribute of "multiple" which then allows multiple files to be selected in the file section dialog box. Firefox 3.6+ and WebKit browsers only are supporting it so far. Unfortunately the "multiple files" need to be within the same folder, as there is no interface for selecting one, moving folders, and selecting another.
<form method="post" action="upload.php" enctype="multipart/form-data">
<input name='uploads[]' type="file" multiple>
<input type="submit" value="Send">
</form>Note that the "name" of the file input has brackets at the end of it. This isn't required per the spec but is required to process the multiple files.
In PHP, you can then loop through the data as an array:
foreach ($_FILES['uploads']['name'] as $filename) {
echo '<li>' . $filename . '</li>';
}
To prevent all search bots from indexing a page:
<meta name="robots" content="noindex">To prevent just Google:
<meta name="googlebot" content="noindex">If you have control over it, you probably want to add nofollow to links that point to that page as well:
<a href="privatepage.html" rel="nofollow">Link to private page</a>Theoretically that's not needed for Google, which claims to drop all pages with noindex from their directory. But there are more search engines out there and it doesn't hurt.