How I do alphanumeric in-sequence order using javascript
<p>I'm using the following JavaScript. The final result is display sequence character. 
But I want to display alphanumeric in-sequence order. How do I do that?</p>

<pre><code>var disp = '';
var string = '';
var i;
var chars = "0123456789abcdefghiklmnopqrstuvwxyz";

var ran_unrounded;
var ran_number;
var rnum;
for (i = 0; i &lt; 5; i++) {
    rnum = Math.floor(Math.random() * chars.length);
    string += chars.substring(rnum, rnum + 1);

    ran_unrounded = Math.random() * 3;
    ran_number = Math.floor(ran_unrounded);
    //document.write(chars.substring(rnum, rnum + 1));
    // alert('rnum', rnum, '--', rnum + 1);

    disp = chars.substring(rnum, rnum + 8);
}
</code></pre>
