jquery 实现。同列中的数据相同的话合并

function _w_table_rowspan(_w_table_id,_w_table_colnum){   
		    _w_table_firsttd = "";   
		    _w_table_currenttd = "";   
		    _w_table_SpanNum = 0;   
		    _w_table_Obj = $(_w_table_id + " tr td:nth-child(" + _w_table_colnum + ")");   
		    _w_table_Obj.each(function(i){   
		        if(i==0){   
		            _w_table_firsttd = $(this);   
		            _w_table_SpanNum = 1;   
		        }else{   
		            _w_table_currenttd = $(this);   
		            if(_w_table_firsttd.text()==_w_table_currenttd.text()){   
		                _w_table_SpanNum++;   
		                _w_table_currenttd.hide(); //remove();   
		                _w_table_firsttd.attr("rowSpan",_w_table_SpanNum);   
		            }else{   
		                _w_table_firsttd = $(this);   
		                _w_table_SpanNum = 1;   
		            }   
		        }   
    		});    
		}	
		
		$(document).ready(function(){          
	        _w_table_rowspan("#dataTable",1);   
    	}); 
			

<table id="dataTable" class="table1" border="1" align="center" cellpadding="0"
				width="90%" cellspacing="0" > 
						<tr>
							<td colspan="10" align="center">
									<font color="red">
								【年级：<param:display type="xxnj1Tag" name="bjkcForm" 
									property="bjkcbQO.nj"  condition="bjkcbQO.xxdm,bjkcbQO.xn,bjkcbQO.xq"/>】
						
								【班级：<param:display type="bjmcTag" name="bjkcForm" 
									 property="bjkcbQO.bjdm"/>】
									</font>
							</td>
						</tr>
				
					<tr height="30">
					<th nowrap="nowrap" class="center">
						上午/下午
					</th>
					<th nowrap="nowrap" class="center">
						时段
					</th>
					<th nowrap="nowrap" class="center">
						时间
					</th>
					
					<th nowrap="nowrap" class="center">
						星期一
					</th>
					<th nowrap="nowrap" class="center">
						星期二
					</th>
					
					<th nowrap="nowrap" class="center">
						星期三
					</th>
					<th nowrap="nowrap" class="center">
						星期四
					</th>
					<th nowrap="nowrap" class="center">
						星期五
					</th>
				</tr>
			
				<logic:iterate name="bjkcForm" property="kcblist"
					id="bjkcbPO" indexId="index">
				 <tr height="30">
							 
						<td class="center" nowrap="nowrap" align="center">
							  <bean:write name="bjkcbPO" property="sxw"/>
						</td>	
							 
						<td class="center" nowrap="nowrap" align="center">
							<bean:write name="bjkcbPO" property="jhmc"/>
						</td>
						
						<td class="center" nowrap="nowrap" align="center">
							<bean:write name="bjkcbPO" property="qssj"/>~~<bean:write name="bjkcbPO" property="zzsj"/>
						</td>
							
							<td class="center" nowrap="nowrap" align="center">
								<bean:write name="bjkcbPO" property="z1kcmc"/>
							</td>
							
							<td class="center" nowrap="nowrap" align="center">
								<bean:write name="bjkcbPO" property="z2kcmc"/>
							</td>
							
							<td class="center" nowrap="nowrap" align="center">
								<bean:write name="bjkcbPO" property="z3kcmc"/>
							</td>
							
							<td class="center" nowrap="nowrap" align="center">
								<bean:write name="bjkcbPO" property="z4kcmc"/>
							</td>
							
							<td class="center" nowrap="nowrap" align="center">
								<bean:write name="bjkcbPO" property="z5kcmc"/>
							</td>
				</tr>
				</logic:iterate>
	</table>