Need Help With Getting Random Number To Display

Hello,

I'm trying to get a random number to display where it says sem=3422

Here is my code...

<script type="text/javascript">
var varuSec = 1;
var t;
function timerWin(){
// alert(varuSec+' varuSec');
if (varuSec > 0){
varuSec--;
document.getElementById('secleft').innerHTML = varuSec;
}
if(varuSec==0){
return getPage('earn.credits.update.php', 'messageArea', 'sid=26563;sem=3422;admin=0;sd=;cer='+document.getElementById('credit_win').innerHTML);
return true;
}
t = setTimeout("timerWin()", 1000);
}
setTimeout("timerWin()", 1000);
</script>

What I would like is where it says sem=3422 I'd like sem=random_number

Is there away I can do this?

Thanks

 

Hi, did you try obvious google search "random number javascript"? Just pick one function and call it in your code like (if function is called get_random_number):
return getPage('earn.credits.update.php', 'messageArea', 'sid=26563;sem='+get_random_number()+';admin=0;sd=;cer='+document.getElementById('credit_win').innerHTML);

 

Here is a simple function:

function getRandomCode(){
var chars = "0123456789";
var code = "";
for (i=0; i<4; i++) {
var rnum = Math.floor(Math.random() * chars.length);
code += chars.substring(rnum, rnum + 1);
}
return code;
}