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jQuery左右弹性滑动的导航菜单特效

2013-05-08 20:20 429 查看
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<head>
<meta charset="UTF-8" />
<title>jQuery左右弹性滑动的导航菜单特效</title>
<style type="text/css">
body{ font-size:100%; font-family:"Microsoft YaHei","Arial"; background:#fff;}
#nav{ position:relative; width:940px; _width:835px; margin:100px auto 0 auto; border-bottom:2px #ddd solid;}
#nav .nav-menu{ height:50px;}
#nav .nav-menu a{ display:block; float:left; height:50px; padding:0 20px; line-height:50px; color:#666; font-size:14px; text-decoration:none;}
#nav .nav-current{ position:absolute; bottom:-2px; height:2px; overflow:hidden; background:#80b600;}
body,td,th {
font-family: "Microsoft YaHei", Arial;
}
</style>
<script type="text/javascript" src="http://www.killer8.com/jquery.js"></script>
<script type="text/javascript">
$(function(){
(function(){
var $navcur = $(".nav-current");
var $nav = $("#nav");
var current = ".current";
var itemW = $nav.find(current).innerWidth();    //默认当前位置宽度
var defLeftW = $nav.find(current).position().left;    //默认当前位置Left值
//添加默认下划线
$navcur.css({width:itemW,left:defLeftW});
//hover事件
$nav.find("a").hover(function(){
var index = $(this).index();    //获取滑过元素索引值
var leftW = $(this).position().left;    //获取滑过元素Left值
var currentW = $nav.find("a").eq(index).innerWidth();    //获取滑过元素Width值
$navcur.stop().animate({
left: leftW,
width: currentW
},300);

},function(){
$navcur.stop().animate({
left: defLeftW,
width: itemW
},300)
})
})();
});
</script>
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