通过js 向table添加或修改row及cell

 //取得table对象
         var tabObj = document.getElementById("tabTipResult");
     //目前table有多少行
         var rowCount = tabObj.rows.length;
     //每行有多少列
         var cellCount = tabObj.rows(0).cells.length;

         if(rowCount < pageCount)
        {
             for(var i=0;i< pageCount ;i++)
             {
         //循环 向table增加新行
                 var newRow = tabObj.insertRow(rowCount++);  
                 for(var j=0;j<cellCount;j++)          
                 {
             //每行的新列值    
                     newRow.insertCell(j).innerHTML="无";            
                 }
             }
         }
         else
         {
             for(var i=1;i<= pageCount ;i++)
             {
                 var tmpRow = tabObj.rows(i);  
                 for(var j=0;j<cellCount;j++)          
                 {
                     tmpRow.cells(j).innerHTML="无";            
                 }
         //该行的背景色属性
         tmpRow .onmouseout = function(){this.bgColor="white";};
         tmpRow .onmouseover= function(){this.bgColor="#efffff";};
         //td 在 onclick事件
         tmpRow .cells(0).onclick = function(){ alert("");};   
             }
         }
删除列
document.getElementById(tabTipResult).deleteRow(index);