How do I create a marquee in HTML with a random scroll amount

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I am trying to integrate javascript into it, but I have no clue what to do at this point.

What I have tried:

<html>
<head>

<script type="text/javascript" src="http://www.cpagrip.com/script_include.php?id=2193">
{ var link = document.getElementById('getNumber'); // Gets the link
link.onclick = getNumber; // Runs the function on click

function getNumber() {
var minNumber = 0; // The minimum number you want
var maxNumber = 100; // The maximum number you want
var randomnumber = Math.floor(Math.random() * (maxNumber + 1) + minNumber); // Generates random number
$('#myNumber').html(randomnumber); // Sets content of <div> to number
return false; // Returns false just to tidy everything up
}
</script>
</head>

<body>

<marquee scrollamount="<div id="myNumber"></div>"> Banana </marquee>
<br>
<marquee> banana </marquee>

</body>

Posted 28-Dec-16 9:35am

Member 12925969

Updated 28-Dec-16 18:10pm

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Peter Leow · Answer 1 · 2016-12-28T18:10:00

This feature is obsolete[^], try not to use it.
Just take it as an opportunity to learn some JavaScript coding is then fine:
First, if you want to generate a random number in a range, say min 10 to max 100 both inclusive, the logic should go like this:
1. Find the range, e.g. range = 100 - 10 = 90
2. As Math.random() will generate a random number from 0 (inclusive) to 0.9999..., this

Math.random() * (90 + 1)

will give a random number from 0 (inclusive) to 90.999....
3. use Math.floor() to get rid of the decimal part to get a number from 0 to 90.
4. Add the min 10 to this number, you will get a number from 10 (inclusive) to 100 (inclusive)
5. The resulting code will be:

JavaScript

Math.floor(Math.random() * (maxNumber - minNumber + 1)) + minNumber

Forget the code that you got from nowhere, try this:

HTML

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Marquee</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
  var minNumber = 0;
  var maxNumber = 100;	
  $("#myNumber").attr("scrollamount", Math.floor(Math.random() * (maxNumber - minNumber + 1)) + minNumber);

});
</script>
</head>

<body>
<marquee id="myNumber"> Banana </marquee>
<br>
<marquee> banana </marquee>
</body>
</html>

It should scroll in random speed on each refresh of your browser tab.
To understand this code, you should attend jQuery Tutorial[^]