缺少对象

解决方案 »

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var id = document.getElementById(divID);
if(id == 'div_current')
这句话有问题啊!
你定义的id是一个object,而div_current看样子是个变量
id = document.getElementById(divID)得到的是一个对象,不能与字符串比较
To hookee:
我试了，但还是不行，大家帮忙啊。
<!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>
    <title>Untitled Page</title>
</head>
<body>
    <table>
        <tr>
            <td style="width: 398px; height: 136px">div_used
                <img src="images/2.jpg" onclick="showDiv('div_used')" height="50" width="50"></td>
            <td style="width: 398px; height: 136px">div_current
                <img src="images/3.jpg" onclick="showDiv('div_current')" height="50" width="50"></td>
        </tr>
        <tr>
            <td style="width: 398px; height: 138px">
                <div id="div_current" style="display: block;">div_current
                    <img src="images/banner.jpg" height="50" width="50">
                </div>
            </td>
            <td style="width: 398px; height: 138px">
                    <div id="div_used" style="display: none;">div_used
                        <img src="images/4.jpg" height="50" width="50">
                    </div>
            </td>
        </tr>
        <tr>
            <td style="width: 398px; height: 116px">
                    </td>
            <td style="width: 398px; height: 116px">
            </td>
        </tr>
        <script language="javascript" type="text/javascript">
function showDiv(divID)
{
    var div_used = this.div_used;
    var div_current = this.div_current;
    if(divID== 'div_current')
    {
        div_current.style.display = "block";
        div_used.style.display = "none";
    }
    else
    {
        div_used.style.display = "block";
        div_current.style.display = "none";
    }
}
        </script>
    </table>
</body>
</html>