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一个小问题 RRS feed

  • 问题

  •   有个小功能,现有6个菜单,点击的时候改变其中一个的CSS,
    btnAccounts.CssClass = "currentwhite";   如何一次性清空其他的Button的样式呢?  有没有点高效率的办法!

    2009年12月20日 9:46

答案

全部回复

  • 最简单就是用js 获取他们id 一次性赋值空字符串就可以
    2009年12月20日 10:11
  • <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>三级dropdown弹出菜单</title>
    <style type="text/css">
    /* common styling */
    .menu {font-family: arial, sans-serif; width:750px; position:relative; margin:0; font-size:11px; margin:50px 0;}
    .menu ul li a, .menu ul li a:visited {display:block; text-decoration:none; color:#000;width:104px; height:20px; text-align:center; color:#fff; border:1px solid #fff; background:#710069; line-height:20px; font-size:11px; overflow:hidden;}
    .menu ul {padding:0; margin:0;list-style-type: none; }
    .menu ul li {float:left; margin-right:1px; position:relative;}
    .menu ul li ul {display: none;}
    /* specific to non IE browsers */
    .menu ul li:hover a {color:#fff; background:#36f;}
    .menu ul li:hover ul {display:block; position:absolute; top:21px; left:0; width:105px;}
    .menu ul li:hover ul li a.hide {background:#6a3; color:#fff;}
    .menu ul li:hover ul li:hover a.hide {background:#6fc; color:#000;}
    .menu ul li:hover ul li ul {display: none;}
    .menu ul li:hover ul li a {display:block; background:#ddd; color:#000;}
    .menu ul li:hover ul li a:hover {background:#6fc; color:#000;}
    .menu ul li:hover ul li:hover ul {display:block; position:absolute; left:105px; top:0;}
    .menu ul li:hover ul li:hover ul.left {left:-105px;}
    </style>
    <!--[if lte IE 6]>
    <style type="text/css">
    .menu ul li a.hide, .menu ul li a:visited.hide {display:none;}
    .menu ul li a:hover ul li a.hide {display:none;}
    .menu ul li a:hover {color:#fff; background:#36f;}
    .menu ul li a:hover ul {display:block; position:absolute; top:21px; left:0; width:105px;}
    .menu ul li a:hover ul li a.sub {background:#6a3; color:#fff;}
    .menu ul li a:hover ul li a {display:block; background:#ddd; color:#000;}
    .menu ul li a:hover ul li a ul {visibility:hidden;}
    .menu ul li a:hover ul li a:hover {background:#6fc; color:#000;}
    .menu ul li a:hover ul li a:hover ul {visibility:visible; position:absolute; left:105px; top:0; color:#000;}
    .menu ul li a:hover ul li a:hover ul.left {left:-105px;}
    </style>
    <![endif]-->
    </head>
    <body>
    <div class="menu">
    <ul>
    <li><a class="hide" href="../menu/index.html">DEMOS</a>
    <!--[if lte IE 6]>
    <a href="../menu/index.html">DEMOS
    <table><tr><td>
    <![endif]-->
        <ul>
        <li><a href="../menu/zero_dollars.html" title="The zero dollar ads page">zero dollars</a></li>
        <li><a href="../menu/embed.html" title="Wrapping text around images">wrapping text</a></li>
        <li><a href="../menu/form.html" title="Styling forms">styled form</a></li>
        <li><a href="../menu/nodots.html" title="Removing active/focus borders">active focus</a></li>
        <li><a class="hide" href="../menu/hover_click.html" title="Hover/click with no active/focus borders">HOVER/CLICK ></a>
      <!--[if lte IE 6]>
      <a class="sub" href="../menu/hover_click.html" title="Hover/click with no active/focus borders">HOVER/CLICK &gt;
      <table><tr><td>
      <![endif]-->
            <ul>
                <li><a href="../menu/form.html" title="Styling forms">styled form</a></li>
                <li><a href="../menu/nodots.html" title="Removing active/focus borders">active focus</a></li>
                <li><a href="../menu/hover_click.html" title="Hover/click with no active/focus borders">hover/click</a></li>
            </ul>
        <!--[if lte IE 6]>
        </td></tr></table>
      </a>
      <![endif]-->
        </li>
        <li><a href="../menu/shadow_boxing.html" title="Multi-position drop shadow">shadow boxing</a></li>
        <li><a href="../menu/old_master.html" title="Image Map for detailed information">image map</a></li>
        <li><a href="../menu/bodies.html" title="fun with background images">fun backgrounds</a></li>
        <li><a href="../menu/fade_scroll.html" title="fade-out scrolling">fade scrolling</a></li>
        <li><a href="../menu/em_images.html" title="em size images compared">em sized images</a></li>
        </ul>
    <!--[if lte IE 6]>
    </td></tr></table>
    </a>
    <![endif]-->
    </li>
    <li><a class="hide" href="index.html">MENUS</a>
    <!--[if lte IE 6]>
    <a href="index.html">MENUS
    <table><tr><td>
    <![endif]-->
        <ul>
        <li><a href="spies.html" title="a coded list of spies">spies menu</a></li>
        <li><a href="vertical.html" title="a horizontal vertical menu">vertical menu</a></li>
        <li><a href="expand.html" title="an enlarging unordered list">enlarging list</a></li>
        <li><a href="enlarge.html" title="an unordered list with link images">link images</a></li>
        <li><a href="cross.html" title="non-rectangular links">non-rectangular</a></li>
        <li><a href="jigsaw.html" title="jigsaw links">jigsaw links</a></li>
        <li><a href="circles.html" title="circular links">circular links</a></li>
        </ul>
    <!--[if lte IE 6]>
    </td></tr></table>
    </a>
    <![endif]-->
    </li>
    <li><a class="hide" href="../layouts/index.html">LAYOUTS</a>
    <!--[if lte IE 6]>
    <a href="../layouts/index.html">LAYOUTS
    <table><tr><td>
    <![endif]-->
        <ul>
        <li><a href="../layouts/bodyfix.html" title="Cross browser fixed layout">Fixed 1</a></li>
        <li><a href="../layouts/body2.html" title="Cross browser fixed layout">Fixed 2</a></li>
        <li><a href="../layouts/body4.html" title="Cross browser fixed layout">Fixed 3</a></li>
        <li><a href="../layouts/body5.html" title="Cross browser fixed layout">Fixed 4</a></li>
        <li><a href="../layouts/minimum.html" title="A simple minimum width layout">minimum width</a></li>
        </ul>
    <!--[if lte IE 6]>
    </td></tr></table>
    </a>
    <![endif]-->
    </li>
    <li><a class="hide" href="../boxes/index.html">BOXES</a>
    <!--[if lte IE 6]>
    <a href="../boxes/index.html">BOXES
    <table><tr><td>
    <![endif]-->
        <ul>
        <li><a href="spies.html" title="a coded list of spies">spies menu</a></li>
        <li><a href="vertical.html" title="a horizontal vertical menu">vertical menu</a></li>
        <li><a href="expand.html" title="an enlarging unordered list">enlarging list</a></li>
        <li><a href="enlarge.html" title="an unordered list with link images">link images</a></li>
        <li><a href="cross.html" title="non-rectangular links">non-rectangular</a></li>
        <li><a href="jigsaw.html" title="jigsaw links">jigsaw links</a></li>
        <li><a href="circles.html" title="circular links">circular links</a></li>
        </ul>
    <!--[if lte IE 6]>
    </td></tr></table>
    </a>
    <![endif]-->
    </li>
    <li><a class="hide" href="../mozilla/index.html">MOZILLA</a>
    <!--[if lte IE 6]>
    <a href="../mozilla/index.html">MOZILLA
    <table><tr><td>
    <![endif]-->
        <ul>
        <li><a href="../mozilla/dropdown.html" title="A drop down menu">drop down menu</a></li>
        <li><a href="../mozilla/cascade.html" title="A cascading menu">cascading menu</a></li>
        <li><a href="../mozilla/content.html" title="Using content:">content:</a></li>
        <li><a href="../mozilla/moxbox.html" title=":hover applied to a div">mozzie box</a></li>
        <li><a href="../mozilla/rainbow.html" title="I can build a rainbow">rainbow box</a></li>
        <li><a href="../mozilla/snooker.html" title="Snooker cue">snooker cue</a></li>
        <li><a href="../mozilla/target.html" title="Target Practise">target practise</a></li>
        <li><a href="../mozilla/splittext.html" title="Two tone headings">two tone headings</a></li>
        <li><a href="../mozilla/shadow_text.html" title="Shadow text">shadow text</a></li>
        </ul>
    <!--[if lte IE 6]>
    </td></tr></table>
    </a>
    <![endif]-->
    </li>
    <li><a class="hide" href="../ie/index.html">EXPLORER</a>
    <!--[if lte IE 6]>
    <a href="../ie/index.html">EXPLORER
    <table><tr><td>
    <![endif]-->
        <ul>
        <li><a href="../ie/exampleone.html" title="Example one">example one</a></li>
        <li><a href="../ie/weft.html" title="Weft fonts">weft fonts</a></li>
        <li><a href="../ie/exampletwo.html" title="Vertical align">vertical align</a></li>
        </ul>
    <!--[if lte IE 6]>
    </td></tr></table>
    </a>
    <![endif]-->
    </li>
    <li><a class="hide" href="../opacity/index.html">OPACITY</a>
    <!--[if lte IE 6]>
    <a href="../opacity/index.html">OPACITY
    <table><tr><td>
    <![endif]-->
        <ul>
        <li><a href="../opacity/colours.html" title="colour wheel">opaque colours</a></li>
        <li><a href="../opacity/picturemenu.html" title="a menu using opacity">opaque menu</a></li>
        <li><a href="../opacity/png.html" title="partial opacity">partial opacity</a></li>
        <li><a href="../opacity/png2.html" title="partial opacity II">partial opacity II</a></li>
        <li><a class="hide" href="../menu/hover_click.html" title="Hover/click with no active/focus borders">< HOVER/CLICK</a>
      <!--[if lte IE 6]>
      <a class="sub" href="../menu/hover_click.html" title="Hover/click with no active/focus borders">&lt; HOVER/CLICK
      <table><tr><td>
      <![endif]-->
            <ul class="left">
                <li><a href="../menu/form.html" title="Styling forms">styled form</a></li>
                <li><a href="../menu/nodots.html" title="Removing active/focus borders">active focus</a></li>
                <li><a href="../menu/hover_click.html" title="Hover/click with no active/focus borders">hover/click</a></li>
            </ul>
        <!--[if lte IE 6]>
        </td></tr></table>
      </a>
      <![endif]-->
        </li>
        </ul>
    <!--[if lte IE 6]>
    </td></tr></table>
    </a>
    <![endif]-->
    </li>
    </ul>
    </div>
    </body>
    </html>


    参照下这里:http://www.lanrentuku.com/js/nav.html
    努力+方法=成功
    2009年12月21日 1:53