Javascript 实现鼠标移动到html元素出现提示框 转

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<!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 runat="server">
    <title>example of the mouse prompt</title>
    <style type="text/css">
        .divStyle
        {
            border: solid 1px red;
            width: 50px;
            height: 50px;
        }
        .promptStyle
        {
            border: dashed 1px blue;
            width: 200px;
            height: 150px;
            visibility: hidden;
            background-color: Yellow;
            position: absolute;
        }
    </style>

    <script type="text/javascript">

  //传入 event 对象
        function ShowPrompt(objEvent) {
            var divObj = document.getElementById("promptDiv");
            divObj.style.visibility = "visible";

   //使用这一行代码,提示层将出现在鼠标附近(如要使用,记得注释 divOjb.style.left = 60+5; 这一句)

            //divObj.style.left = objEvent.clientX + 5;   //clientX 为鼠标在窗体中的 x 坐标值       
            divObj.style.left = 60 + 5;
            divObj.style.top = objEvent.clientY + 5;     //clientY 为鼠标在窗体中的 y 坐标值
        }

  //隐藏提示框

        function HiddenPrompt() {
            divObj = document.getElementById("promptDiv");
            divObj.style.visibility = "hidden";
        }
       
    </script>

</head>
<body>
    <form id="form1" >

    <%--鼠标事件触发提示及隐藏提示框--%>
    <div class="divStyle" onmouseover="ShowPrompt(event)" onmouseout="HiddenPrompt()" >
        div A
    </div>
    <br />
    <br />
    <div class="divStyle" onmouseover="ShowPrompt(event)" onmouseout="HiddenPrompt()">
        div B
    </div>
    <br />
    <br />
    <div class="divStyle" onmouseover="ShowPrompt(event)" onmouseout="HiddenPrompt()">
        div C
    </div>
    <br />
    <br />

    <%--提示框--%>
    <div id="promptDiv" class="promptStyle">
        This is prompt div.
    </div>
    </form>
</body>
</html>

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