<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript">
var count = 0;
function showLayer() {
// 레이어 개체 가져오기
var layer1 = document.getElementById("openLayer");
// 레이어 개체 보이기
if (count % 2 == 0) {
layer1.style.visibility = "visible";
}
else {
layer1.style.visibility = "hidden";
}
count++;
}
</script>
</head>
<body>
<form id="form1">
<div>
<input type="button" value="레이어 보이기/안보이기" onclick="showLayer();" />
<div id="openLayer" style="width:200px;height:200px;background-color:Yellow;visibility:hidden;position:absolute;">
레이어1
</div>
</div>
</form>
</body>
</html>