JS simulated paper tearing effect of Tencent Weibo app example code_javascript skills

<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Tencent Weibo app tearing paper effect</title> <style type="text/css"> body{margin:0;padding:0;font-size:14px;line-height:22px;} .content,content_mack{width:300px;height:400px;overflow:hidden;font-size:12px;line-height:20px;background:#f2eee3;cursor:pointer;} .content_mack{position:absolute;top:0px;left:0;} .mack{position:absolute;width:300px;height:50px;overflow:hidden;top:0px;left:0px;background:#fff;} .bg_sizhi{position:absolute;width:300px;height:50px;overflow:hidden;background:url('http://files.jb51.net/file_images/article/201305/2013521101603617.gif');top:0px;left:0;line-height:50px;text-align:center;} </style> <div style="width:300px;height:400px;overflow:hidden;position: relative;float:left;"> <div class="content" id="content"> <div class="content">04-262.59MCerberus FTP Server Chinese version 2.48FTP software 04-253.55MWeb Page Maker simple web page production v3.1 web page production 04-25990KRemote Desktop Spy server monitoring, remote control v5.2 server software 04-252.20Kx3389 remote port modification Server 1.0 server software 04-25210K remote desktop 3389 batch login software 3.0 remote control 04-25789KTable2CSS Table layout to Div CSS 3.0! 04-2314.1Mjre1.6 download | jre 1.6 JAVA virtual machine environment package programming and development 04-2393.9KVC Regular expression tester programming and development 04-2331.6K Small software webmaster tool that removes right-click restrictions and prohibits copying of web pages 04-231.49MDiagram Designer vector editor. </div> <div class="bg_sizhi" id="bg_sizhi">JS simulated paper tearing effect of Tencent Weibo app</div> <div class="mack" id="mack"> <div class="content content_mack" id="content_mack">05-0114.3KC# Automatically change IP address Network related 05-0117.0KC# Network sending and receiving statistics program Network related 05-0115.8K LAN IP scanner C# Source code Network related 05-01411K Smooth rotation of jQuery web page slides before and after Code focus slide 05-01300KVB RichTextBox control usage guide pdfVB tutorial 05-01925KVB Function quick reference manual pdfVB tutorial 05-01509KHTML5 and CSS comprehensive animation effect focus map special effects focus slide 05-014.49K jquery multi-level expansion drop-down similar to tree menu Menu menu navigation 05-0136.0K Colorful web page menu navigation that imitates Flash background and slides left and right 04-3016.9M Java example development book CD source code book source code 04-30916K Android and Js interactive source code example Android sliding menu production RenRenSlidingLayout code Android source code 04-30644KFlat UI HTML user interface common code package Ajax/JavaScript04-3053.3KJavaScript imitation Baidu Encyclopedia entry statistical animation effect Ajax/JavaScript04-30267Kjquery shrinking effect example from outside to inside jQuery04-306.41KDelphi Mode attribute Usage example control component 04-306.03KStartPos property-Delphi usage other categories 04-306.47KNotifyValue property usage example Delphi source code other categories 04-30</div> </div> </div> </div>
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]<script> function $(id){/* 获取id */ return typeof id === "string" ? document.getElementById(id) : id; } function getStyle(obj, attr){ return obj.currentStyle?obj.currentStyle[attr]:getComputedStyle(obj, false)[attr]; } function startMove(obj, json, fnEnd){ if(obj.timer){ clearInterval(obj.timer); } obj.timer=setInterval(function (){ doMove(obj, json, fnEnd); }, 10); var oDate=new Date(); if(oDate.getTime()-obj.lastMove>30){ doMove(obj, json, fnEnd); } } function doMove(obj, json, fnEnd){ var iCur=0; var attr=''; var bStop=true;//假设运动已经该停止了 for(attr in json){ iCur = attr=='opacity'?parseInt(100*parseFloat(getStyle(obj, 'opacity'))):parseInt(getStyle(obj, attr)); if(isNaN(iCur)){ iCur=0; } var iSpeed=(json[attr]-iCur)/8; iSpeed=iSpeed>0?Math.ceil(iSpeed):Math.floor(iSpeed); if(parseInt(json[attr])!=iCur){ bStop=false; } if(attr=='opacity'){ obj.style.filter="alpha(opacity:"+(iCur+iSpeed)+")"; obj.style.opacity=(iCur+iSpeed)/100; } else{ obj.style[attr]=iCur+iSpeed+'px'; } } if(bStop){ clearInterval(obj.timer); obj.timer=null; if(fnEnd){ fnEnd(); } } obj.lastMove=(new Date()).getTime(); } var flag = 0; $('content').onclick = function(ev){ var oEvent=ev||event; if(!flag){ var Y = oEvent.clientY-25; Y = Y<0?0:Y; Y = Y>350?350:Y; $('bg_sizhi').style.top = $('mack').style.top = Y+'px'; $('content_mack').style.top = -Y+'px'; startMove($('mack'),{'left':-300}); flag = 1; }else{ startMove($('mack'),{'left':0}); flag = 0; } } </script>