i have the following form, i want to create a function to auto click on page load.
<form id="demo-form" method="post" action="http://demo.org/cad/original/core.php">
<fieldset id="demo-user-chat">
<label for="demo_chat">Message</label>
<textarea name="demo_chat" id="demo_chat" rows="5" cols="50" onkeypress="if (typeof pressedEnter == 'function') return pressedEnter(this,event);" placeholder="Message" autocomplete="off"></textarea>
</fieldset>
<div id="demo-user-submit">
<input type="submit" id="submitform" name="submit" class="submit" value="Submit">
</div>
</form>