function loadpage() {
browver= parseInt(navigator.appVersion);
browtype = navigator.appName;
browsertype = "old";
if (browtype == "Netscape" && !(browver < 3)) {
browsertype = "new";
}
if (browtype == "Microsoft Internet Explorer" && !(browver < 4)) {
browsertype = "new";
}
if (browsertype == "new") {

thetimer1 = setTimeout("changeimage1()", 4000);
thetimer2 = setTimeout("changeimage2()", 4000);
//thetimer3 = setTimeout("changeimage3()", 4000);





banneradcode1 = 11;
listofimages1 = new Array(4);
listofimages1[1] = new Image(482,60)
listofimages1[1].src = "ad/11.gif"
listofimages1[2] = new Image(482,60)
listofimages1[2].src = "ad/12.gif"
listofimages1[3] = new Image(482,60)
listofimages1[3].src = "ad/13.gif"
listofimages1[4] = new Image(482,60)
listofimages1[4].src = "ad/14.gif"

banneradcode2 = 21;
listofimages2 = new Array(4);
listofimages2[1] = new Image(482,60)
listofimages2[1].src = "ad/21.gif"
listofimages2[2] = new Image(482,60)
listofimages2[2].src = "ad/22.gif"
listofimages2[3] = new Image(482,60)
listofimages2[3].src = "ad/23.gif"
listofimages2[4] = new Image(482,60)
listofimages2[4].src = "ad/24.gif"
}
}


function changeimage1(){
if (browsertype == "new") {
banneradcode1 = banneradcode1 + 1
if (banneradcode1 == "15") {
banneradcode1 = 11
}
imagesource1 =  "ad/" + banneradcode1 + ".gif"
var bannerad1
if(window.document.bannerad1){
bannerad1 = window.document.bannerad1
bannerad1.src = imagesource1}

//window.document.bannerad1.src = imagesource1
thetimer1 = setTimeout("changeimage1()", 5000);
}
else if (browsertype == "old") {
}
}

function changeimage2(){
if (browsertype == "new") {
banneradcode2 = banneradcode2 + 1
if (banneradcode2 == "25") {
banneradcode2 = 21
}
imagesource2 =  "ad/" + banneradcode2 + ".gif"
var bannerad2
if(window.document.bannerad2){
bannerad2 = window.document.bannerad2
bannerad2.src = imagesource2}

//window.document.bannerad2.src = imagesource2
thetimer2 = setTimeout("changeimage2()", 5000);
}
else if (browsertype == "old") {
}
}



function changepage1() {
if (browsertype == "new") {
if (banneradcode1 == 11) {
newlocation = "http://www.sinovision.net/index.php?module=htmlad&id=127"
}
else if (banneradcode1 == 12) {
newlocation = "http://www.blin.cn/sinovision/"
}
else if (banneradcode1 == 13) {
newlocation = "http://www.sinovision.net/index.php?module=htmlad&id=127"
}
else if (banneradcode1 == 14) {
newlocation = "http://www.blin.cn/sinovision/"
}

location = newlocation
}
else if (browsertype1 == "old") {
location = "http://www.sinovision.net"
}
}


function changepage2() {
if (browsertype == "new") {
if (banneradcode2 == 21) {
newlocation = "http://www.anlexpress.com"
}
else if (banneradcode2 == 22) {
newlocation = "http://www.tinhatravel.com/default.asp"
}
else if (banneradcode2 == 23) {
newlocation = "http://www.anlexpress.com"
}
else if (banneradcode2 == 24) {
newlocation = "http://www.tinhatravel.com/default.asp"
}
location = newlocation
}
else if (browsertype2 == "old") {
location = "http://www.sinovision.net"
}
}

js.Event.addEvent(window, 'load', loadpage);