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javascript - 如何在菜单栏中的特定菜单选项卡中设置默认选项卡

转载 作者：太空宇宙 更新时间：2023-11-04 15:18:14 24 4
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我在这段代码中有一些疑问。这是菜单栏 JavaScript，它有很多选项卡。当我运行这段代码时，它会自动点击第二个 TAB 而不是第一个 TAB。

JavaScript 代码。

   var dolphintabs={subcontainers:[], last_accessed_tab:null,

    revealsubmenu:function(curtabref){
    this.hideallsubs()
    if (this.last_accessed_tab!=null)
        this.last_accessed_tab.className=""
    if (curtabref.getAttribute("rel")) //If there's a sub menu defined for this tab     item, show it
    document.getElementById(curtabref.getAttribute("rel")).style.display="block"
    curtabref.className="current"
    this.last_accessed_tab=curtabref
    },

    hideallsubs:function(){
    for (var i=0; i<this.subcontainers.length; i++)
    document.getElementById(this.subcontainers[i]).style.display="none"
    },

    init:function(menuId, selectedIndex){
    var tabItems=document.getElementById(menuId).getElementsByTagName("a")
    for (var i=0; i<tabItems.length; i++){
    if (tabItems[i].getAttribute("rel"))
        this.subcontainers[this.subcontainers.length]=tabItems[i].getAttribute("rel") //store id of     submenu div of tab menu item
    if (i==selectedIndex){ //if this tab item should be selected by default
    tabItems[i].className="current"
    this.revealsubmenu(tabItems[i])
        }
    tabItems[i].onclick=function(){
    dolphintabs.revealsubmenu(this)
    }
    } //END FOR LOOP
    }
    }

HTML 代码:

<head>
<title>Cut & Paste Dolphin Tabs Menu</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link rel="stylesheet" href="style.css" type="text/css" />
<script type="text/javascript" src="dolphin.js">
</script>
</head>

<body>

<div id="dolphincontainer">
<div id="dolphinnav">
<ul>
<li><a href="http://www.javascriptkit.com"><span>Home</span></a></li>
<li><a href="http://www.javascriptkit.com" rel="joey"><span>Joey</span></a></li>
<li><a href="http://www.javascriptkit.com" rel="suzy"><span>Suzy</span></a></li>
<li><a href="http://www.javascriptkit.com" rel="george"><span >George</span></a></li>
<li><a href="http://www.javascriptkit.com"><span>Contact Us</span></a></li>
</ul>
</div>
<div id="dolphin_inner">
<div id="joey" class="innercontent">
Joey's statue of a white dog was originally given to Jennifer Aniston as a good luck present from her best friend.
</div>

<div id="suzy" class="innercontent">
During this period, then-locally famous Suzy Waud anchored evening broadcasting.
</div>

<div id="george" class="innercontent">
George Louis Costanza is a fictional character on the United States based television sitcom Seinfeld (1989–1998).
</div>

<!-- End Sub Menus container -->
</div>

</div>

<script type="text/javascript">

</script>
    </body>
    </html>

CSS 代码:

#dolphincontainer{position:relative;border-bottom: 2px solid navy;     color:#E0E0E0;background:#143D55;
width:100%;font-family:Helvetica,Arial,Verdana,sans-serif;}
#dolphinnav{position:relative;height:33px;font-size:12px;text-transform:uppercase;font-           weight:bold;background:#fff url(images/dolphin_bg.gif) repeat-x bottom left;padding:0 0 0 20px;}
#dolphinnav ul{margin:0;padding:0;list-style-type:none;width:auto;float:left;}
#dolphinnav ul li{display:block;float:left;margin:0 1px;}
#dolphinnav ul li a{display:block;float:left;color:#EAF3F8;text- decoration:none;padding:0 0 0 20px;height:33px;}
#dolphinnav ul li a span{padding:12px 20px 0 0;height:21px;float:left;}
#dolphinnav ul li a:hover{color:#fff;background:transparent url(images/dolphin_bg-OVER.gif) repeat-x bottom left;}
#dolphinnav ul li a:hover span{display:block;width:auto;cursor:pointer;}
#dolphinnav ul li a.current,#dolphinnav ul li a.current:hover{color:#fff;background:#1D6893 url(images/dolphin_left-ON.gif) no-repeat top left;line-height:275%;}
#dolphinnav ul li a.current span{display:block;padding:0 20px 0 0;width:auto;background:#1D6893 url(images/dolphin_right-ON.gif) no-repeat top right;height:33px;}

#dolphin_inner{color: white; padding: 5px; font-size: 80%; height: 1em}

#dolphin_inner a:link, #dolphin_inner a:visited, #dolphin_inner a:active{color: white}
#dolphin_inner a:hover{color: yellow}

.innercontent{display: none;}

示例请参见下面的链接。单击此处查看其示例 http://www.javascriptkit.com/script/script2/tabset/index.shtml

最佳答案

添加rel属性给你的 <a>标签 首页

希望这对您有所帮助!

已更新
在您的 HTML 代码中更新以下调用 

dolphintabs.init("dolphinnav", 0)

关于javascript - 如何在菜单栏中的特定菜单选项卡中设置默认选项卡，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/14830774/

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