How To hide or show HTML DIV using Button
<html><script>
function hide1(){
document.getElementById("div").style.visibility="hidden";
}
</script>
<body>
<div id="div" style="height:400px; width:200px;background:red;" >
Hide
</div>
<button onclick="javscript:hide1();" value="click">Click</button>
</body>
</html>
