
Then you can look for that url parameter when determining what value to default like this:
value=""<?php echo(isset($_GET['valid')?ValidatedField("addnews_166","formTITLE"):$rsEDITNEWS->getColumnVal("njstitle")) ?>

Syntax error with that:
<input name="formTITLE" type="text" autofocus required class="form-control" id="formTITLE" placeholder="Please enter your name..." value="<?php echo(isset($_GET['valid')?ValidatedField("editnews_302","formTITLE"):$rsEDITNEWS->getColumnVal("njstitle")) ?>" size="20" maxlength="100">
Fix...
This...
<?php echo(isset($_GET['valid')?ValidatedField("editnews_302","formTITLE"):$rsEDITNEWS->getColumnVal("njstitle")) ?>
Should be...
<?php echo(isset($_GET['valid'])?ValidatedField("editnews_302","formTITLE"):$rsEDITNEWS->getColumnVal("njstitle")) ?>
Will try that on the site and report back.