求通用合并行的js
能够通用合并行中相同值的,表格样式是动态的,即只知道最大列数为几,例如只在页面中红色字体区域合并相同值,要合并的部分最大列为3 
  <!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> 无标题文档 </title>  
  <style   type= "text/css ">  
  <!-- 
 .STYLE1   {color:   #FF0000} 
 -->  
  </style>  
  </head>    
  <body>  
  <table   width= "582 "   border= "1 ">  
        <tr>  
              <td   width= "49 "> test01 </td>  
              <td   width= "39 "> test11 </td>  
              <td   width= "53 "> test12 </td>  
              <td   width= "53 "   rowspan= "3 "> a </td>  
              <td   colspan= "6 "> b </td>  
        </tr>  
        <tr>  
              <td> test10 </td>  
              <td> test12 </td>  
              <td> test13 </td>  
              <td   colspan= "3 ">   </td>  
              <td   width= "53 "   rowspan= "2 "> 2 </td>  
              <td   width= "53 "   rowspan= "2 "> 4 </td>  
              <td   width= "59 "   rowspan= "2 "> 5 </td>  
        </tr>  
        <tr>  
              <td> test20 </td>  
              <td> test21 </td>  
              <td> test23 </td>  
              <td   width= "53 "> 1 </td>  
              <td   width= "53 "> 2 </td>  
              <td   width= "53 "> 3 </td>  
        </tr>  
        <tr>  
              <td   rowspan= "12 ">  <span   class= "STYLE1 "> 资产相关费 <br   />  
             用 </span>  </td>  
              <td   rowspan= "2 ">  <span   class= "STYLE1 "> 折旧 </span>  </td>  
              <td>  <span   class= "STYLE1 "> 1 </span>  </td>  
              <td>   </td>  
              <td>   </td>  
              <td>   </td>  
              <td>   </td>  
              <td>   </td>  
              <td>   </td>  
              <td>   </td>  
        </tr>  
        <tr>  
           &nbs