function go(what) {
    value = what.options[what.selectedIndex].value;
    if (value == "http://www.optus.com.au")
    {
       window.open(value,'','toolbar=yes,directories=yes,location=yes,status=yes,menubar=yes,resizable=yes,copyhistory=no,scrollbars=yes');
    }
    else if (value != '') {
        window.location.href = value;
    }
}


<!-- Begin Image Mouseover Code

image0 = new Image();
image0.src = "../images/sthead02over.gif";

image1 = new Image();
image1.src = "../images/sthead03over.gif";

image2 = new Image();
image2.src = "../images/sthead04.gif";

image3 = new Image();
image3.src = "../images/sthead02over.gif";

image4 = new Image();
image4.src = "../images/sthead05over.gif";

image5 = new Image();
image5.src = "../images/sthead06over.gif";

image6 = new Image();
image6.src = "../images/sthead07over.gif";

btn_arcade = new Image();
btn_arcade.src = "../images/btn_arcadeRollOver.gif";

btn_mind = new Image();
btn_mind.src = "../images/btn_mindRollOver.gif";

btn_classic = new Image();
btn_classic.src = "../images/btn_classicRollOver.gif";

btn_puzzle = new Image();
btn_puzzle.src = "../images/btn_puzzleRollOver.gif";

btn_fun = new Image();
btn_fun.src = "../images/btn_funRollOver.gif";

btn_action = new Image();
btn_action.src = "../images/btn_actionRollOver.gif";

btn_simulation = new Image();
btn_simulation.src = "../images/btn_simulationRollOver.gif";

btn_sport = new Image();
btn_sport.src = "../images/btn_sportRollOver.gif";

btn_seeallgame = new Image();
btn_seeallgame.src = "../images/btn_seeallgameRollOver.gif";

// end Image Mouseover Code-->