我让让鼠标移动到table中的某一行时,这行的背景色或背景图片改变。
我在php里面就设置了onmouseover和onmouseout:
echo "<tr onmouseover='" . "setrcolor('1', '".$row['roomname'].")'";
                      echo "onmouseout='" . "setrcolor('0', '".$row['roomname'] . ")' >";
script部分如下:
function setrcolor(v,id)
{
    if(v=="1")
    {
        document.getElementById(id).style.background="#fcf4f6";
        alert("1");
    }
    if(v=="0")
    {
        document.getElementById(id).style.background="";
        alert("0");
    }
}
总是在setrcolor(这个地方报告语法错误,不知道为什么?

解决方案 »

  1.   

    一般这样处理:
    <!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>无标题文档</title>
    <script type="text/javascript">
    window.onload = function() {
    var obj = document.getElementById('demo').getElementsByTagName('tr');
    for (var i = 0; i < obj.length; i ++) {
    obj[i].onmouseover = function() {
    this.style.backgroundColor = 'red';
    }
    obj[i].onmouseout = function() {
    this.style.backgroundColor = '';
    }
    }
    }
    </script>
    </head><body>
    <table width="500" border="1" id="demo">
      <tr>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
      </tr>
      <tr>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
      </tr>
      <tr>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
      </tr>
    </table>
    </body>
    </html>
      

  2.   

    <table width="500" border="1" id="demo" cellpadding="0" cellspacing="0">
      <tr onmousemove="this.style.backgroundColor='red'" onmouseover="this.style.backgroundColor='red'" onmouseout="this.style.backgroundColor='#fff';">
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
        <td>&nbsp;</td>
      </tr></table>
      

  3.   

    <tr onmousemove="this.style.backgroundColor='red'" onmouseout="this.style.backgroundColor='#fff';">