search

Home  >  Article  >  Web Front-end  >  JS non-Alert implements the 'unread information' effect pop-up window in the lower right corner of the web page_javascript skills

JS non-Alert implements the 'unread information' effect pop-up window in the lower right corner of the web page_javascript skills

WBOY
WBOYOriginal
2016-05-16 15:38:071330browse

The example in this article describes the JS non-Alert implementation of the "Unread Information" effect pop-up window in the lower right corner of the web page. Share it with everyone for your reference. The details are as follows:

This is a pop-up window code in the lower right corner of the web page. It is jointly created using Div Js technology. It is not an Alert function. It imitates the pop-up window code in the lower right corner of the web page of Tencent News. The source code author wants to make it easy for novices to understand and learn. A good example, rich comments are added to the code, which provides great convenience for novices to learn and use.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/js-f-alert-right-buttom-dlg-demo/

The specific code is as follows: 

<!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>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>右下角的弹窗</title>
</head>
<style type="text/css">
body { background:#333333;}
#winpop { width:200px; height:0px; position:absolute; right:0; bottom:0; border:1px solid #999999; margin:0; padding:1px; overflow:hidden; display:none; background:#FFFFFF}
#winpop .title { width:100%; height:20px; line-height:20px; background:#FFCC00; font-weight:bold; text-align:center; font-size:12px;}
#winpop .con { width:100%; height:80px; line-height:80px; font-weight:bold; font-size:12px; color:#FF0000; text-decoration:underline; text-align:center}
#silu { font-size:13px; color:#999999; position:absolute; right:0; text-align:right; text-decoration:underline; line-height:22px;}
.close { position:absolute; right:4px; top:-1px; color:#FFFFFF; cursor:pointer}
</style>
<script type="text/javascript">
function tips_pop(){
var MsgPop=document.getElementById("winpop");//获取窗口这个对象,即ID为winpop的对象
var popH=parseInt(MsgPop.style.height);//用parseInt将对象的高度转化为数字,以方便下面比较
if (popH==0){//如果窗口的高度是0
MsgPop.style.display="block";//那么将隐藏的窗口显示出来
show=setInterval("changeH('up')",2);//开始以每0.002秒调用函数changeH("up"),即每0.002秒向上移动一次
}
else {//否则
hide=setInterval("changeH('down')",2);//开始以每0.002秒调用函数changeH("down"),即每0.002秒向下移动一次
}
}
function changeH(str) {
var MsgPop=document.getElementById("winpop");
var popH=parseInt(MsgPop.style.height);
if(str=="up"){//如果这个参数是UP
if (popH<=100){//如果转化为数值的高度小于等于100
MsgPop.style.height=(popH+4).toString()+"px";//高度增加4个象素
}
else{
clearInterval(show);//否则就取消这个函数调用,意思就是如果高度超过100象度了,就不再增长了
}
}
if(str=="down"){
if (popH>=4){//如果这个参数是down
MsgPop.style.height=(popH-4).toString()+"px";//那么窗口的高度减少4个象素
}
else{//否则
clearInterval(hide);//否则就取消这个函数调用,意思就是如果高度小于4个象度的时候,就不再减了
MsgPop.style.display="none";//因为窗口有边框,所以还是可以看见1~2象素没缩进去,这时候就把DIV隐藏掉
}
}
}
window.onload=function(){//加载
document.getElementById('winpop').style.height='0px';//我不知道为什么要初始化这个高度,CSS里不是已经初始化了吗,知道的告诉我一下
setTimeout("tips_pop()",800);//3秒后调用tips_pop()这个函数
}
</script>
<body>
脚本之家提供最新的网络编程、脚本编程、网页制作、网页设计、网页特效，为站长与网络编程从业者提供学习资料。<hr>
<div id="silu">
<button onclick="tips_pop()">测试按钮</button>
</div>
<div id="winpop">
<div class="title">您有新的消息<span class="close" onclick="tips_pop()">X</span></div>
<div class="con">未读信息(1)</div>
</div>
</body>
</html>

I hope this article will be helpful to everyone’s JavaScript programming.

Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：How to implement WeChat payment for H5 page payment with built-in browser_javascript skillsNext article：How to implement WeChat payment for H5 page payment with built-in browser_javascript skills

Related articles

See more