function closeAd1() {
document.getElementById("popad1").style.display="none"; 
}
function openAd1() {
document.getElementById("popad1").style.display="block"; 
}

function closeAd2() {
document.getElementById("popad2").style.display="none"; 
}
function openAd2() {
document.getElementById("popad2").style.display="block"; 
}

function closeAd3() {
document.getElementById("popad3").style.display="none"; 
}
function openAd3() {
document.getElementById("popad3").style.display="block"; 
}

function closeAd4() {
document.getElementById("popad4").style.display="none"; 
}
function openAd4() {
document.getElementById("popad4").style.display="block"; 
}

function closeAd5() {
document.getElementById("popad5").style.display="none"; 
}
function openAd5() {
document.getElementById("popad5").style.display="block"; 
}

function closeAd6() {
document.getElementById("popad6").style.display="none"; 
}
function openAd6() {
document.getElementById("popad6").style.display="block"; 
}

function closeAd7() {
document.getElementById("popad7").style.display="none"; 
}
function openAd7() {
document.getElementById("popad7").style.display="block"; 
}

function closeAd8() {
document.getElementById("popad8").style.display="none"; 
}
function openAd8() {
document.getElementById("popad8").style.display="block"; 
}