浏览器打开层自动缓慢展开收缩实例代码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style>
#screefull{display:block; border:1px solid #bddbf3; width:954px; padding:3px 5px 7px; margin:0 auto 10px; background:#fef9db; }
#mostrar{display:block; width:954px; display:none;}
#screefull a.close{ display:block; width:25px; height:20px; background:url(img/cx.gif) no-repeat 0 0; overflow:hidden; float:right; margin:16px 8px 0 0; *margin-right:5px; text-decoration:none;}
#screefull p{ display:block; text-align:center; font-family:"Microsoft Yahei"; font-size:14px; color:#000; height:28px; line-height:28px; vertical-align:middle;}
#screefull var{ display:inline-block; *display:inline; *zoom:1; background:url(img/wicon.gif) no-repeat 0 0; width:28px; height:28px; overflow:hidden; vertical-align:middle; margin-right:10px;}
#screefull em{ display:inline-block; *display:inline; *zoom:1; color:#ff0000; font-family:"Microsoft Yahei"; font-style:normal;}
#screefull span{ display:inline-block; *display:inline; *zoom:1; vertical-align:middle;}
#screefull p a{ display:inline-block; *display:inline; *zoom:1; color:#2400ff; text-decoration:underline;}
</style>
<script type="text/javascript" src="js/jquery.js"></script>
</head>
<body>
<!--begin:1-->
<div id="warn" class="scree clearfix" style="display:none;">
<div id="screefull">
<a href="#" class="close" onclick="closewarn('close')">[x]</a>
<p><span>在<em>未通过审核的网站</em>添加广告代码,将不会产生佣金。<a href="#" target="_blank" >我知道了</a></span></p>
</div>
</div>
<script type="text/javascript">
function closewarn(type)
{
$("#warn").slideUp("slow");
if(type == 'know')
{
$.post(window.location.href,{op : 'setwarn'},function(data)
{
return true;
});
}
}
window.onload = function()
{
$("#warn").slideDown(2000);
}
</script>
<!--end:1-->
</body>
</html>
解释上面代码段:
1、$("#warn").slideUp("slow");向上滑动, $("#warn").slideDown(2000);向下滑动
2、$.post(window.location.href,{op : 'setwarn'},function(data)
{
return true;
})
运用到了ajax 提交 跟服务器进行交互,
第一个参数是请求的地址 第二个是提交的参数 第三个是请求成功 之后调用的方法
参数op 的值是setwarn json串的格式具体运用解说看http://www.w3school.com.cn/jquery/ajax_post.asp
url 对应 locaotion.href(取得是当前页面的地址)
data对应 {op:setwarn} 字符串
success 对应 函数
3、window.onload = function(){}作用一般在<text/javascript>中写的函数都要在body页面中调用,用此函数就不用等着body页面中调用就可以执行了