jquery动态合并单元格（根据主列合并）

var start_row ;
var row_num = 0;
$("#userTable tr").each(function(i){
	if(i==0){
		start_row = $(this);
	}else{
		if($(this).find("td:eq(1)").text() == start_row.find("td:eq(1)").text()){
			row_num ++ ;
			$(this).find("td:eq(0)").hide(); 
			$(this).find("td:eq(1)").hide(); 
			$(this).find("td:eq(8)").hide(); 
			$(this).find("td:eq(9)").hide(); 
			$(this).find("td:eq(10)").hide(); 
			
			start_row.find("td:eq(0)").attr("rowSpan",row_num); 
			start_row.find("td:eq(1)").attr("rowSpan",row_num); 
			
			start_row.find("td:eq(8)").attr("rowSpan",row_num); 
			start_row.find("td:eq(9)").attr("rowSpan",row_num); 
			start_row.find("td:eq(10)").attr("rowSpan",row_num); 
			
			
			
		}else{
			start_row = $(this);
			row_num ++ ;
		}
	}
	
});