handling random values

Hi,

Please see my code below:

I only want to generate random values 0-2 however it goes up to 10.
Can someone please advise how I should adjust my random function.

thanks


var values = new Array();

values[0]="hello1";
values[1]="hello2";
values[2]="hello3";
values[3]="hello4";

while (confirm("again?"))
{
      document.write("<pre>");
      document.writeln(values[Math.floor(Math.random()*10)]);
      document.write("</pre>");
}