DOM操作表格

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DOM操作表格
<!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=gb2312" />
<title>使用HTML DOM操作表格</title>
<style type="text/css">
body{
font-size:13px;
line-height:25px;
}
table{
border-top: 1px solid #333;
border-left: 1px solid #333;
width:300px;
}
td{
border-right: 1px solid #333;
border-bottom: 1px solid #333;
}
.center{
text-align:center;
}
.title{
text-align:center;
font-weight:bold;
background-color: #cccccc;
}

</style>
<script type="text/javascript">
window.onload =function(){
  var b1 = document.getElementById("b1");
  var b2 = document.getElementById("b2");
  var b3 = document.getElementById("b3");
  var myTable = document.getElementById("myTable");
  b1.onclick = function(){
   var rownum = myTable.rows.length;
   var rows = myTable.insertRow(rownum);
   var cell1 = rows.insertCell(0);
   var cell2 = rows.insertCell(1);
   cell1.innerHTML = "西游记";
   cell2.innerHTML = "<input id='b4' type='button' onclick='deletes(this)' value='删除'/>";
   cell2.align = "center";
  }
  b2.onclick = function(){
   myTable.deleteRow(1);

  }

  b3.onclick = function(){
   var rows = myTable.rows[0];
   if(b3.value == "恢复！"){
    b3.value = "修改标题";
    rows.className = "";
   }else{
    b3.value = "恢复！";
    rows.className = "title";
   }

  }




}

function deletes(obj){
  var rownum = obj.parentNode.parentNode.rowIndex;
  var myTable = document.getElementById("myTable");
  myTable.deleteRow(rownum);

}

</script>

</head>

<body>
<table border="0" cellspacing="0" cellpadding="0" id="myTable">
<tr id="row1">
    <td>书名</td>
    <td>价格</td>
</tr>
<tr id="row2">
    <td>看得见风景的房间</td>
    <td class="center">¥30.00</td>
</tr>
<tr id="row3">
    <td>60个瞬间</td>
    <td class="center">¥32.00</td>
</tr>
</table>
<input id="b1" type="button" value="增加一行" />
<input id="b2" type="button" value="删除第2行" />
<input id="b3" type="button" value="修改标题"/>
</body>
</html>

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