Using math.min to find smallest of 3 numbers in javascript. Doing homework and just can not get this. This is what I have so far
<p>Write a function <strong>minimum3</strong> that returns the smallest number of 3 floating-point numbers.  use the <code>math.min function</code>.  Incorporate into a script that reads 3 values from user and determines the smallest.</p>

<pre><code>&lt;!DOCTYPE html&gt;


&lt;html&gt;
&lt;head&gt;
&lt;title&gt;
Javascript Program to find smallest from 3 numbers&lt;/title&gt;

&lt;script type="text/javascript"&gt;


var num1;
var num2;
var num3;
var num1Int = parseInt(num1);
var num2Int = parseInt(num2);
var num3Int = parseInt(num3);
var num4 = Math.min(num1Int, num2Int, num3Int);


document.write(num4);

&lt;/script&gt;
&lt;/head&gt;
&lt;body&gt;

&lt;form name=f1&gt;
num1: &lt;input type="textbox" name=num1&gt;&lt;br&gt;
num2: &lt;input type="textbox" name=num2&gt;&lt;br&gt;
num3: &lt;input type="textbox" name=num3&gt;&lt;br&gt;&lt;br&gt;&lt;br&gt;

&lt;button onclick="num4"&gt;Smallest&lt;/button&gt;
&lt;/form&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>