JavaScript瀑布流
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JS瀑布流效果
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"><html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> <title>瀑布流效果</title> <style type="text/css"> *{ margin:0; padding:0; } h1{ text-align:center; height:100px; } body{ background-color:RGB(232,231,226); } .all{ margin:0 auto; width:1000px; } .number{ float:left; width:225px; } .content { margin:5px; background-color:white; } img{ margin:5px; } .loading{ position: absolute; width:100%; height:40px; display:none; text-align:center; background-color:RGB(189,203,207); } #toTop { position:fixed; _position:fixed; font-size:12px; color:Blue; width:15px; text-align:center; right:300px; bottom:100px; cursor:pointer; background-color:RGB(243,247,251); display:none; } </style> <script type="text/javascript"> window.onload = function () { //初始参数 var reset = 0; //某些滚动条会触发三次scroll事件 用这个解决 var surplusHeight = 800; //差值 var imgWidth = "206px"; //img的宽度 var imgHeight = 0; //img的高度 var textHeight = 0; //文字高度 var showTopButtonHeight = 500;//回到顶部按钮的距离 var bigDivCount = 4; var div1 = $("one"); var div2 = $("two"); var div3 = $("three"); var div4 = $("four"); var loading = $("loading"); var toTop = $("toTop"); //得到浏览器的名称 var browser = getBrowser(); //数据源 var imgArray = []; //img数组 也就是数据来源 var textArray = []; //img底下的文字和img对应 textArray[0] = "test_test_"; textArray[1] = "test_test_test_test_"; textArray[2] = "test_test_test_test_test_test_"; textArray[3] = "test_test_test_test_test_test_test_test_"; textArray[4] = "test_test_ test_test_"; textArray[5] = "test_test_test_test_"; textArray[6] = "test_test_"; textArray[7] = "test_test_test_test_"; textArray[8] = "test_test_test_test_test_test_"; textArray[9] = "test_test_tes"; textArray[10] = "test_test_"; textArray[11] = "test_test_"; textArray[12] = "test_test_test_"; textArray[13] = "test_test_test_test"; textArray[14] = "test_test_test_test"; textArray[15] = "test_test_test_test_"; imgArray[0] = "1.jpg"; imgArray[1] = "2.jpg"; imgArray[2] = "3.jpg"; imgArray[3] = "4.jpg"; imgArray[4] = "5.jpg"; imgArray[5] = "6.jpg"; imgArray[6] = "7.jpg"; imgArray[7] = "8.jpg"; imgArray[8] = "9.jpg"; //初始化 loadImg(); //主会场 window.onscroll = fun_scroll; //滚动方法 function fun_scroll() { //body的高度 var topAll = (browser == "Firefox") ? document.documentElement.scrollHeight : document.body.scrollHeight; //卷上去的高度 var top_top = document.body.scrollTop || document.documentElement.scrollTop; //回到顶部按钮操作 if (top_top > showTopButtonHeight) toTop.style.display = "block"; else toTop.style.display = "none"; //控制滚动条次数以及判断是否到达底部 if (reset == 0) { var topAll = (browser == "Firefox") ? document.documentElement.scrollHeight : document.body.scrollHeight; //body的高度 var top_top = document.body.scrollTop || document.documentElement.scrollTop; //卷上去的高度 var result = topAll - top_top; if (result < surplusHeight) { setTimeout(loadImg, 1000); reset = 1; } } else { setTimeout(function () { reset = 0; }, 1000); } } //加载图片 function loadImg() { loading.style.display = "none"; for (var i = 0; i < bigDivCount; i++) { div1.appendChild(addDiv()); div2.appendChild(addDiv()); div3.appendChild(addDiv()); div4.appendChild(addDiv()); } setTimeout(function () { var hh = (browser == "Firefox") ? document.documentElement.scrollHeight : document.body.scrollHeight; loading.style.top = hh + "px"; loading.style.display = "block"; }, 1000); } //声明一个包含img和title的div function addDiv() { //数组下标的随机值 var ran = Math.round(Math.random() * (imgArray.length - 1)); //title层 var small_div = document.createElement("div"); small_div.innerHTML = textArray[ran]; //内部img var img = document.createElement("img"); img.alt = ""; img.src = imgArray[ran]; img.style.width = imgWidth; //包含img的层 var div = document.createElement("div"); div.className = "content"; div.appendChild(img); div.appendChild(small_div); return div; } //通过id得到对象 function $(id) { return document.getElementById(id); } //得到浏览器的名称 function getBrowser() { var OsObject = ""; if (navigator.userAgent.indexOf("MSIE") > 0) { return "MSIE"; } if (isFirefox = navigator.userAgent.indexOf("Firefox") > 0) { return "Firefox"; } if (isSafari = navigator.userAgent.indexOf("Safari") > 0) { return "Safari"; } if (isCamino = navigator.userAgent.indexOf("Camino") > 0) { return "Camino"; } if (isMozilla = navigator.userAgent.indexOf("Gecko/") > 0) { return "Gecko"; } } //回到顶部 toTop.onclick = function () { var count = 500; //每次的距离 var speed = 200; //速度 var timer = setInterval(function () { var top_top = document.body.scrollTop || document.documentElement.scrollTop; var tt = top_top - count; tt = (tt < 300) ? 0 : tt; if (top_top > 0) window.scrollTo(tt, tt); else clearInterval(timer); }, speed) }; } </script> </head> <body> <h1 id="h1">I like TRY</h1> <div id="all" class="all"> <div id="one" class="number"> </div> <div id="two" class="number"> </div> <div id="three" class="number"> </div> <div id="four" class="number"> </div> </div> <div id="loading" class="loading"> <img src="http://www.xesee.com/upload/200803131036175436.gif" /> </div> <div id="toTop"><span>△回顶部</span></div> </body> </html>
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