<head runat="server">
    <title>无标题页</title>
    <style type="text/css">
        .bgStart
        {
            padding: 0px 11px 0px 0px;
            width: 79px;
            height: 37px;
            line-height: 37px;
            text-align: center;
            float: left;
            cursor: pointer;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div style="background-image: url(imge/nav_bg.gif); background-repeat: repeat-x;
        width: 100%; height: 37px;">
        <div style="width: 876px; height: 37px; margin: 0px 0px 0px 160px;">
            <div class="bgStart" onmouseover="this.style.background='url(imge/nav_bg2.gif)';"
                onmouseout="this.className='bgStart'">
                <a href="#">首 页</a></div>
           
        </div>
    </div>
    </form>
</body>

解决方案 »

  1.   

    this.style.backgroundImage='url(imge/nav_bg2.gif)'
      

  2.   

    .bgStart{增加background:none;}
    增加上也没有反应呢??
      

  3.   


    <head runat="server"> 
        <title>无标题页 </title> 
        <style type="text/css"> 
            .bgStart 
            { 
                padding: 0px 11px 0px 0px; 
                width: 79px; 
                height: 37px; 
                line-height: 37px; 
                text-align: center; 
                float: left; 
                cursor: pointer; 
            } 
    .bgEnd
    {
    background:url('imge/nav_bg2.gif') left bottom no-repeat;
    }

        </style> 
    </head> 
    <body> 
        <form id="form1" runat="server"> 
        <div style="background-image: url(imge/nav_bg.gif); background-repeat: repeat-x; 
            width: 100%; height: 37px;"> 
            <div style="width: 876px; height: 37px; margin: 0px 0px 0px 160px;"> 
                <div class="bgStart" onmouseover="this.className='bgEnd';" 
                    onmouseout="this.className='bgStart'"> 
                    <a href="#">首 页 </a> </div> 
              
            </div> 
        </div> 
        </form> 
    </body>
    这样可以 具体想你那样写为什么不行 我也想知道 期待高人