<div>
You would have to have a program on the server that you contact that can check to see if the files are there. &nbsp;You can't check anything on the user's local machine.
</div>


You would have to have a program on the server that you contact that can check to see if the files are there.  You can't check anything on the user's local machine.

<div>
At present the site is on localhost<br />
and once it works I will transfer it to a server.<br />
Can it be done?
</div>


At present the site is on localhost
and once it works I will transfer it to a server.
Can it be done?

<div>
And if so, how?<br />
thanks again for replying
</div>


And if so, how?
thanks again for replying

<div>
Of course it can be done on the server. &nbsp;The scripting is trivial in any commonly used server side scripting language.<br />
<br />
Cd&amp;
</div>


Of course it can be done on the server.  The scripting is trivial in any commonly used server side scripting language.

Cd&

<div>
<div class="content wysiwyg-content">
How could I use jQuery or AJAX to check if there are:<br />
1) a pdf<br />
2) and an mp4<br />
files in a folder?<br />
I know the file names, if that is useful.<br />
<br />
thanks in advance
</div>
</div>


How could I use jQuery or AJAX to check if there are:
1) a pdf
2) and an mp4
files in a folder?
I know the file names, if that is useful.

thanks in advance

Use Jquery or AJAX to check if a file exists

jQuery (Core) is a cross-browser JavaScript library that provides abstractions for common client-side tasks such as Document Object Model (DOM) traversal, DOM manipulation, event handling, animation and Ajax. jQuery also provides a platform to create plugins that extend jQuery's capabilities beyond those already provided by the library.

jQuery

Asynchronous JavaScript and XML (AJAX) is a group of interrelated Web development techniques used on the client-side to create asynchronous Web applications. With AJAX, web applications can send data to and retrieve from a server asynchronously (in the background) without interfering with the display and behavior of the existing page. HTML and CSS can be used in combination to mark up and style information. The Document Object Model (DOM) is accessed with JavaScript to dynamically display and allow interaction with the information presented.

AJAX

HTML (HyperText Markup Language) is the main markup language for creating web pages and other information to be displayed in a web browser, providing both the structure and content for what is sent from a web server through the use of tags. The current implementation of the HTML specification is HTML5.