function getAppVersion() {
appname= navigator.appName;
appversion = navigator.appVersion;
majorver = appversion.substring(0, 1);
if ( (appname == "Netscape") && ( majorver >= 3 ) ) return 1;
if ( (appname == "Microsoft Internet Explorer") && (majorver >= 4) ) return 1;
return 0;
}
function swtch(num, imgname) {
if (getAppVersion()) {
document[imgname].src = img[num].src;
}
}
//
imgsrc = new Array();
imgsrc[0] = "design/menu/image1.png";
imgsrc[1] = "design/menu/image1_over.png";
imgsrc[2] = "design/menu/image1_down.png";
imgsrc[3] = "design/menu/image2.png";
imgsrc[4] = "design/menu/image2_over.png";
imgsrc[5] = "design/menu/image2_down.png";
imgsrc[6] = "design/menu/image3.png";
imgsrc[7] = "design/menu/image3_over.png";
imgsrc[8] = "design/menu/image3_down.png";
imgsrc[9] = "design/menu/image4.png";
imgsrc[10] = "design/menu/image4_over.png";
imgsrc[11] = "design/menu/image4_down.png";
imgsrc[12] = "design/menu/image5.png";
imgsrc[13] = "design/menu/image5_over.png";
imgsrc[14] = "design/menu/image5_down.png";

imgsrc[15] = "design/menu/subimage1.png";
imgsrc[16] = "design/menu/subimage1_over.png";
imgsrc[17] = "design/menu/subimage1_down.png";
imgsrc[18] = "design/menu/subimage2.png";
imgsrc[19] = "design/menu/subimage2_over.png";
imgsrc[20] = "design/menu/subimage2_down.png";
imgsrc[21] = "design/menu/subimage3.png";
imgsrc[22] = "design/menu/subimage3_over.png";
imgsrc[23] = "design/menu/subimage3_down.png";
imgsrc[24] = "design/menu/subimage4.png";
imgsrc[25] = "design/menu/subimage4_over.png";
imgsrc[26] = "design/menu/subimage4_down.png";
imgsrc[27] = "design/menu/subimage5.png";
imgsrc[28] = "design/menu/subimage5_over.png";
imgsrc[29] = "design/menu/subimage5_down.png";

imgsrc[30] = "design/center_banner.png";
imgsrc[31] = "design/center_banner_over.png";
imgsrc[32] = "design/center_banner_down.png";



if (getAppVersion()) {
img = new Array();
for (i = 0; i < imgsrc.length; i++) {
img[i] = new Image();
img[i].src = imgsrc[i];
}
}