So I understand.
I have moved on, Peter, and found an HTML/PHP solution to my problem that doesn't involve JAVA.
Here is the web page:
https://www.database39.com/stand.php
Naturally, the solution has created a new problem. I can't call the next page while the range slider is still running.
Code description -- everything works except call to NextPage.php:
1. Range slider
2. Get the value using PHP function
3. Validate (echo) I have the value in a PHP $variable
4. Call next page -- header('location:../NextPage.php');
Doesn't work while range slider is still running???
------------------------------------------------------
<!-- Begin Range Slider -->
<form action="" method="POST">
<div class="mt-4">
<input type="range" class="form-range" id="customRange" name="the_number" onchange='document.getElementById("bar").value = "Slider Value = " + document.getElementById ("foo").value;' width="66%" value="0" min="-100" max="100"/>
<div id="result"><b></b></div>
<input type="text" name="bar" id="bar" disabled />
<br />
<input type=submit value=Submit />
</form>
<br />
</center>
<!-- Get current value of slider -->
<?php
if(isset($_POST["the_number"])){
$the_number = $_POST["the_number"];
echo "Number of range is:" . $_POST["the_number"];
// Your Slider value is here, do what you want with it. Mail/Print anything..
} else{
Echo "Please slide the Slider Bar and Press Submit.";
}
// Validate number
echo "<br>";
echo "Hey! The number is --> ";
echo $the_number . "<br>";
// Load value of range slider into Session
$_SESSION['the_number'] = $the_number;
// ********* Turn the page -- THIS ISN'T WORKING! **********
header('location:../Stand2.php');
?>