javascript对表格的控制

　<script type="text/javascript">  
 
        function compareData(){  
 
            //var headArray = document.getElementsByName("header");  
 
            var tempTable = document.getElementById("disqualificationList");  
 
            var rowObj = null;  
 
            var cellObj = null;  
 
            var childrenObj = null;  
 
            var valueObj = null;  
 
            var cellObjoin = null;  
 
            var cellCount = null;  
 
            var rowCount = null;  
 
            rowObj = tempTable.rows[1];//第一行  
 
            alert("第一行"+rowObj);  
 
            cellObj = rowObj.cells[0];//第一行0列