looping javascript

ada yang bisa tolong bantu untuk looping javascript function anc_add var markup seperti ini bagaimana yaa?

<script type="text/javascript">
    	$(document).ready(function(){
    	var cnt = 2;
    	$("#anc_add").click(function(){

    			var markup = 	'<tr>'+
    								'<td><select name="inventory_category'+cnt+'" class="form-control6"><option value=""> </option><option value="WINDOW FILM">WINDOW FILM </option></select></td>'+
    								'<td><select name="item_group'+cnt+'" class="form-control6" ><option value=""> </option><option value="V-KOOL">V-KOOL </option></select></td>'+
    								'<td><select name="inventory_serial'+cnt+'" class="form-control2" id="inventory"><option value="">	</option><?php foreach($inventory as $inven){echo "<option value=".$inven->serial.">".$inven->inventory_name."</option>";} ?></select></td>'+
    								'<td><select id="makes1" name="window_position'+cnt+'" class="form-control6"><option value="">	</option><?php foreach($makes as $m){ echo "<option value=".$m.">".$m."</option>"; }?></select></td>'+
    								'<td><select id="models1" class="form-control2" name="window_position_detail'+cnt+'" style="display:none;"></select></td>'+
    								'<td><input type="text" name="serial_no'+cnt+'" class="form-control6" ></td>'+
    								'<td><input type="button" onClick="javascript:void(0);" class="remCF" value="[-]"></td>'+
    							'</tr>';
    		 $("#tbl1").append(markup);
    		 cnt++;
    	 $('#makes1').change(function(){
    		$('#models1').css("display","block");

    		$('#models1').change(function(){
    			$('#submit').css("display","block"); /
    		});
    		var make = $(this).val();
    		$.post('<?php echo site_url('admin/soccreate1');?>', {make:make}, function(data){
    			$('#models1').html(data);
    		});
    	});
    		 });

    	$("#tbl1").on('click','.remCF',function(){
    		$(this).parent().parent().remove();
    	});
    });
    </script>