动态添加和删除行

<html>
    
<head>
        
<title>动态添加和删除行</title>
        
<script type="text/javascript">
            
<!--
            
var count = 1;
            
var nRows = 2;
            
            
function addRow() {
                
                 
var tBody = document.getElementById('theBody');
                 
var newRow = document.createElement('tr');
                 
var col1 = document.createElement('td');
                 
var col2 = document.createElement('td');
                 
var col3 = document.createElement('td');
                 
var rA = document.createElement('a');

                 newRow.setAttribute('id', 'n' 
+ count);
                
             rA.setAttribute('href', 'javascript:removeRow(\'n' 
+ count + '\');');
                 rA.appendChild(document.createTextNode('Remove'));
                    
              col1.appendChild(document.createTextNode('Col 
1 Row ' + nRows));
              col2.appendChild(document.createTextNode('Col 
2 Row ' + nRows));
                col3.appendChild(rA);

                newRow.appendChild(col1);
                newRow.appendChild(col2);
                newRow.appendChild(col3);

                tBody.appendChild(newRow);

                count
++;
                nRows
++;
    
            }


            
function removeRow(rowId) {
                 
var tBody = document.getElementById('theBody');
                 tBody.removeChild(document.getElementById(rowId));
                nRows
--;
            }

            
-->
        
</script>
    
</head>
    
<body>
        
<table>
            
<tbody id="theBody">
            
<tr>
                 
<td>Col 1 Row 1</td>
                 
<td>Col 2 Row 1</td>
              
</tr>                 
            
</tbody>
        
</table>    
        
<p><href="javascript:addRow()">Add Row</a></p>
    
</body>
</html>
posted @ 2005-07-01 14:47  让心灵去旅行  阅读(715)  评论(0编辑  收藏  举报