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;                 }             }         });     }        $(function(){        _w_table_rowspan("#_gvInformation",1);     })