[javascript]代码库
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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>IBM官网导航条效果</title>
<style>
body,div,ul,li{margin:0;padding:0;}
body{height:2000px;background:#F0F0F0;}
li{list-style:none;}
a:link,a:visited{outline:none;text-decoration:none;}
#wrap{width:100%;position:fixed;top:0;}
#topBar{color:#7A7A7A;height:28px;background:#131623;overflow:hidden;font:12px/28px Arial;text-align:center;}
#topBar a{color:#FFF;background:#7A7A7A;padding:2px 5px;border-radius:10px;}
#nav{height:50px;overflow:hidden;border-top:1px solid #999;border-bottom::1px solid #666;background:#000 url(http://www.alixixi.com/web/UploadPic/2011-12/2011122131216590.png) repeat-x;}
#nav .logo{float:left;margin:0 20px;}
#nav .logo a{float:left;width:100px;height:50px;overflow:hidden;text-indent:-9999px;background:url(http://www.alixixi.com/web/UploadPic/2011-12/2011122131214364.png) no-repeat;}
#nav .logo a:hover{background-position:0 -50px;}
#nav.hide .logo a{width:100px;height:30px;background-position:0 -100px;_background-position:0 -130px;}
#nav.hide .logo a:hover{background-position:0 -130px;}
#nav ul,#nav ul li{float:left;}
#nav ul li a{float:left;color:#CCC;height:50px;font:16px/50px Arial;padding:0 20px;}
#nav ul li a:hover{color:#FFF;background:url(http://www.alixixi.com/web/UploadPic/2011-12/2011122131216590.png) 0 -50px repeat-x;}
#nav.hide ul{display:none;}
</style>
<script>
var fgm = {
shit: !-[1,] && !window.XMLHttpRequest,
scrollTop: function() {
return document.documentElement.scrollTop || document.body.scrollTop;
},
currentStyle: function(obj, attr) {
return parseInt(obj.currentStyle ? obj.currentStyle[attr] : getComputedStyle(obj, null)[attr]);
},
fixed: function(element) {
if(this.shit) {
var top = this.currentStyle(element, "top") || 0,
dd = "(document.documentElement)";
document.documentElement.style.textOverflow = "ellipsis";
element.style.position = "absolute";
element.style.setExpression("top", "eval(" + dd + ".scrollTop + " + (top - this.scrollTop()) + ') + "px"');
}
else {
element.style.position = "fixed";
}
},
doMove: function(obj, iTarget, callback) {
clearInterval(obj.timer);
obj.timer = setInterval(function() {
var iCur = fgm.currentStyle(obj, "height"),
iSpeed = (iTarget - iCur) / 5;
iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed);
iTarget == iCur ? (clearInterval(obj.timer), callback && callback.call(obj)) : obj.style.height = iSpeed + iCur + "px";
}, 30);
}
};
window.onload = function() {
var oWrap = document.getElementById("wrap"),
oTopBar = document.getElementById("topBar"),
oNav = document.getElementById("nav"),
fnStatus = function(status) {
!!status ?
(function() {
oNav.className = "hide";
fgm.doMove(oTopBar, 4);
fgm.doMove(oNav, 30);
})() :
(function() {
fgm.doMove(oTopBar, 28);
fgm.doMove(oNav, 50, function() {
this.className = "" ;
})
})();
};
fgm.fixed(oWrap);//IE6 Fixed
window.onscroll = function() {
var iScrollTop = fgm.scrollTop();
fnStatus(iScrollTop > 0);
document.onmouseover = function(ev) {
var oEv = ev || event,
oTarget = oEv.target || oEv.srcElement,
contains = function() {
if(oWrap.contains) {
return oWrap.contains(oTarget);
}
else if(oWrap.compareDocumentPosition) {
return !!(oWrap.compareDocumentPosition(oTarget) & 16);
}
}();
fnStatus(!contains && iScrollTop > 0);
};
};
window.onscroll();
};
</script>
</head>
<body>
<div id="wrap">
<div id="topBar">网页特效提示：用鼠标下拉滚动条查看导航效果，特效转载请注明出处 <a href="http://js.alixixi.com">js.alixixi.com</a> 网页特效频道</div>
<!--/topBar-->
<div id="nav">
<div class="logo"><a href="javascript:;">IBM</a></div>
<ul>
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</div>
<!--/nav-->
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</body>
</html>
会python真的可以为所欲为0(回)
33天前
这里还有人吗1(回)
218天前
每天面对着电脑屏幕，敲打键盘。我所面对的并不只是代码，而是一种生活方式。0(回)
442天前
鸽子
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527天前