Random script doesn`t work

Hello!

Can someone, please, tell me, what is worng with my script for random text? I put it on a portal, but it just didn`t work.

Code:

SCRIPT>joke0= "joke here";joke1= "joke here";joke2= "joke here";joke3= "joke here";var ran_unrounded=Math.random()*3;var ran_number=Math.round(ran_unrounded);document.write(eval("joke"+ran_number));</SCRIPT>

Thank you.

It should work though, but here are two possible sources of trouble:

the initial tag is not complete, be sure you have written "<script>" instead of just "script>". Also, note that you have all options named "joke here", even if it chooses a random one, you might not notice a difference.

Acctually I have written <script> (made a mastek when I was copied & pasted).

I`ve also already used different names of options so this isn`t the problem..

What can be possibly wrong?