<!--
if(navigator.appVersion.charAt(0) >= 3) {
        var img = new Array();
        img[0] = new Image();  img[0].src = "images/bt/btn1_1.gif";
        img[1] = new Image();  img[1].src = "images/bt/btn1_2.gif";
        img[2] = new Image();  img[2].src = "images/bt/btn2_1.gif";
        img[3] = new Image();  img[3].src = "images/bt/btn2_2.gif";
        img[4] = new Image();  img[4].src = "images/bt/btn3_1.gif";
        img[5] = new Image();  img[5].src = "images/bt/btn3_2.gif";
        img[6] = new Image();  img[6].src = "images/bt/btn4_1.gif";
        img[7] = new Image();  img[7].src = "images/bt/btn4_2.gif";
        img[8] = new Image();  img[8].src = "images/bt/btn5_1.gif";
        img[9] = new Image();  img[9].src = "images/bt/btn5_2.gif";
        img[10] = new Image();  img[10].src = "images/bt/btn6_1.gif";
        img[11] = new Image();  img[11].src = "images/bt/btn6_2.gif";
        img[12] = new Image();  img[12].src = "images/bt/btn7_1.gif";
        img[13] = new Image();  img[13].src = "images/bt/btn7_2.gif";

}
function change_image(nam,num) {
        if(navigator.appVersion.charAt(0) >= 3) {
                document.images[nam].src = img[num].src;
        }
}
//-->