I am using a HTML form to upload image files. Now i am using server side validation to allow the file types. But i want to validate it in client side as well. I have seen in some websites which greys out other file types when we are choosing the file. I think that is a cool option. When i was walking through google i found this
<input id="my_file_element" type="file" name="file_0" accept="image/*">
accept attribute is a HTML5 feature and so is unsupported by a lot of browsers.
I'm afraid that, as long as I remember, the only other way to get a better file upload dialog (filetype filters, multiple files...) is to use a Flash object.