opensourcepos/application/views/items/form_inventory.php

<div id="required_fields_message"><?php echo $this->lang->line('common_fields_required_message'); ?></div>

<ul id="error_message_box" class="error_message_box"></ul>

<?php echo form_open('items/save_inventory/'.$item_info->item_id, array('id'=>'item_form', 'class'=>'form-horizontal')); ?>
	<fieldset id="inv_item_basic_info">
		<div class="form-group form-group-sm">
			<?php echo form_label($this->lang->line('items_item_number'), 'name', array('class'=>'control-label col-xs-3')); ?>
			<div class="col-xs-8">
				<div class="input-group">
					<span class="input-group-addon input-sm"><span class="glyphicon glyphicon-barcode"></span></span>
					<?php echo form_input(array(
							'name'=>'item_number',
							'id'=>'item_number',
							'class'=>'form-control input-sm',
							'disabled'=>'',
							'value'=>$item_info->item_number)
							);?>
				</div>
			</div>
		</div>

		<div class="form-group form-group-sm">
			<?php echo form_label($this->lang->line('items_name'), 'name', array('class'=>'control-label col-xs-3')); ?>
			<div class='col-xs-8'>
				<?php echo form_input(array(
						'name'=>'name',
						'id'=>'name',
						'class'=>'form-control input-sm',
						'disabled'=>'',
						'value'=>$item_info->name)
						); ?>
			</div>
		</div>

		<div class="form-group form-group-sm">
			<?php echo form_label($this->lang->line('items_category'), 'category', array('class'=>'control-label col-xs-3')); ?>
			<div class='col-xs-8'>
				<div class="input-group">
					<span class="input-group-addon input-sm"><span class="glyphicon glyphicon-tag"></span></span>
					<?php echo form_input(array(
							'name'=>'category',
							'id'=>'category',
							'class'=>'form-control input-sm',
							'disabled'=>'',
							'value'=>$item_info->category)
							);?>
				</div>
			</div>
		</div>

		<div class="form-group form-group-sm">
			<?php echo form_label($this->lang->line('items_stock_location'), 'stock_location', array('class'=>'control-label col-xs-3')); ?>
			<div class='col-xs-8'>
				<?php echo form_dropdown('stock_location', $stock_locations, current($stock_locations), array('onchange'=>'fill_quantity(this.value)', 'class'=>'form-control'));	?>
			</div>
		</div>

		<div class="form-group form-group-sm">
			<?php echo form_label($this->lang->line('items_current_quantity'), 'quantity', array('class'=>'control-label col-xs-3')); ?>
			<div class='col-xs-4'>
				<?php echo form_input(array(
						'name'=>'quantity',
						'id'=>'quantity',
						'class'=>'form-control input-sm',
						'disabled'=>'',
						'value'=>to_quantity_decimals(current($item_quantities)))
						); ?>
			</div>
		</div>

		<div class="form-group form-group-sm">
			<?php echo form_label($this->lang->line('items_add_minus'), 'quantity', array('class'=>'required control-label col-xs-3')); ?>
			<div class='col-xs-4'>
				<?php echo form_input(array(
						'name'=>'newquantity',
						'id'=>'newquantity',
						'class'=>'form-control input-sm')
						); ?>
			</div>
		</div>

		<div class="form-group form-group-sm">
			<?php echo form_label($this->lang->line('items_inventory_comments'), 'description', array('class'=>'control-label col-xs-3')); ?>
			<div class='col-xs-8'>
				<?php echo form_textarea(array(
						'name'=>'trans_comment',
						'id'=>'trans_comment',
						'class'=>'form-control input-sm')
						);?>
			</div>
		</div>
	</fieldset>
<?php echo form_close(); ?>

<script type='text/javascript'>
//validation and submit handling
$(document).ready(function()
{		
	$('#item_form').validate({
		submitHandler:function(form)
		{
			$(form).ajaxSubmit({
			success:function(response)
			{
				dialog_support.hide();
				post_item_form_submit(response);
			},
			dataType:'json'
		});

		},
		errorLabelContainer: "#error_message_box",
 		wrapper: "li",
		rules: 
		{
			newquantity:
			{
				required:true,
				number:true
			}
   		},
		messages: 
		{
			
			newquantity:
			{
				required:"<?php echo $this->lang->line('items_quantity_required'); ?>",
				number:"<?php echo $this->lang->line('items_quantity_number'); ?>"
			}
		}
	});
});

function fill_quantity(val) 
{   
    var item_quantities = <?php echo json_encode($item_quantities); ?>;
    document.getElementById("quantity").value = parseFloat(item_quantities[val]).toFixed(<?php echo quantity_decimals(); ?>);
}
</script>