jquery 实现斜导航效果

运行后刷新一下，才可以，也可以保存本地直接运行也可。

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<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
<title>jquery导航菜单</title> 
<style type="text/css"> 
#menu1 { width:970px;height:45px;} 
#menu1,#menu1 a , #menu1 a span{ background-image:url(http://img.phpstudy.net/demo/images/daohao.gif);} 
#menu1 a{ display:block;float:left;height:45px;} 
#menu1 a span{ float:right;width:33px; height:45px; background-position:-970px 0;} 
#menu1 a span.sj{ background-position:-1003px 0;} 
#menu1 a.a1{ width:168px; background-position:0 0;} 
#menu1 a.a2{ width:117px; background-position:-168px 0;} 
#menu1 a.a3{ width:113px; background-position:-285px 0;} 
#menu1 a.a4{ width:114px; background-position:-398px 0;} 
#menu1 a.a5{ width:111px; background-position:-512px 0;} 
#menu1 a.a6{ width:114px; background-position:-623px 0;} 
#menu1 a.a7{ width:113px; background-position:-737px 0;} 
#menu1 a.a8{ width:120px; background-position:-850px 0;} 
#menu1 a.nowa1{ background-position:0 45px;} 
#menu1 a.nowa2{ background-position:-168px 45px;} 
#menu1 a.nowa3{ background-position:-285px 45px;} 
#menu1 a.nowa4{ background-position:-398px 45px;} 
#menu1 a.nowa5{ background-position:-512px 45px;} 
#menu1 a.nowa6{ background-position:-623px 45px;} 
#menu1 a.nowa7{ background-position:-737px 45px;} 
#menu1 a.nowa8{ background-position:-850px 45px;} 
</style> 
<script type="text/javascript" src="http://img.phpstudy.net/jslib/jquery/jquery-1.3.2.min.js"></"></script> 
<script type="text/javascript"> 
function menu(nowa)//nowa 默认是哪个 0 1 2 3 4 5 6 7 
{ 
    $(function(){ 
        $("#menu1 a:not(:last)").append('<span></span>'); 
        $("#menu1 a").each(function(i){ 
            $(this).addClass("a"+(i+1)); 
            if(i!=nowa){ 
                $(this).hover(function(){ 
                    $(this).addClass("nowa"+(i+1)) 
                        .prev("a").find("span").addClass("sj"); 
                },function(){ 
                    $(this).removeClass("nowa"+(i+1)) 
                        .prev("a").find("span").removeClass("sj"); 
                }); 
            } 
        }); 
        $("#menu1 a:eq("+nowa+")").addClass("nowa"+(nowa+1)) 
            .prev("a").find("span").addClass("sj"); 
    }); 
} 
menu(0); 
</script> 
</head> 
<body> 
        <div id="menu1"> 
            如需引入外部Js需刷新才能执行]</div>

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