js
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>display</title>
<script type="text/javascript">
function hidetext()
{
var mychar = document.getElementById("con");
mychar.style.display="none" ; //Do not display, hide
}
function showtext()
{
var mychar = document.getElementById("con");
mychar.style.display="block" ; //Display, not hide
}
</script>
</head>
<body>
<h1>JavaScript</h1>
<form>
<input type="button" onclick="hidetext()" value="隐藏内容" />
<input type="button" onclick="showtext()" value="显示内容" />
</form>
</body>
</html>
jquery
//hide
$("#id").css('display','none');
//show
$("#id").css('display','block');
or$("#id")[0].style.display = 'none';
$("#id") returns JQuery
it is a collection that must have display property
$("#id").show() display:block, $("#id").hide() means display:none; $("#id").toggle() toggles the visible state of the element. If the element is visible, switch to hidden; if the element is hidden, switch to visible.