function RandomNumber()
{
var today = new Date();
var num= Math.abs(Math.sin(today.getTime()/1000));
return num;
}

function RandomMessage() 
{
var x = RandomNumber();

if (x > .71)
{document.write("<img src=/theme/default/images/tnt-sym1.gif alt=Courage>"); return;
}
if (x > .01)
{document.write("<img src=/theme/default/images/tnt-sym2.gif alt=Strength>"); return;
}
}

RandomMessage();