def computeLaborSaleTotal()
  if #quantity does not exist
    hide the closest <p/> to labor_sale_total then
    hide the closest <p/> to material_sale_total
  else if #quantity.value is 0
    or #labor_unit.value is 0
    or #labor_min.value is 0
    or #labor_sale.value is 0
      then put "$ 0.00" into #labor_sale_total
  else 
    set total to Math.ceil(#quantity.value / #labor_min.value) *
      #labor_min.value * (#labor_sale.value / #labor_unit.value)
    then put "$ " + total.toFixed(2) into #labor_sale_total
  end
end

def computeMaterialSaleTotal()
  if #quantity does not exist
    hide the closest <p/> to #labor_sale_total then
    hide the closest <p/> to #material_sale_total then
    hide the closest <p/> to #material_quantity
  else if #quantity is 0
    or #material_unit.value is 0
    or #material_min.value is 0
    or #material_sale.value is 0
      then put "$ 0.00" into #material_sale_total
      then put "0" into #material_quantity
  else 
    set mat_quant to Math.ceil(#quantity.value / #material_min.value)
    set total to mat_quant * #material_min.value *
        (#material_sale.value / #material_unit.value)
    then put "$ " + total.toFixed(2) into #material_sale_total
    then put mat_quant.toFixed(0) into #material_quantity
  end
end

def validateEditSowItem()
  set isValid to true
  if #new_room_checkbox.checked and no #new_room_name.value 
    set isValid to false
  end

  if #new_price_checkbox.checked and no #new_price_desc.value
    set isValid to false
  end

  if isValid
    remove @disabled from #submit
    if #new_room_checkbox.checked
        show #new_room_notice
    end
    if #new_price_checkbox.checked
        show #new_price_notice
    end
  else
    hide #new_price_notice
    hide #new_room_notice
    add @disabled to #submit
  end
end

def updatePriceInfo()
    set pname to #new_price_desc.value + ' - ' + #new_price_unit.value
    if no #new_price_desc.value and no #new_price_unit.value
        set pname to 'None'
    end
    put pname into #price_info
    put pname into <#new_price_notice span/>
end

def updateRoomInfo()
    set rname to #new_room_name.value + ' - '
        + #new_room_length.value + ' L x '
        + #new_room_width.value + ' W x '
        + #new_room_height.value + ' H'
    if no #new_room_name.value and no #new_room_length.value
            and no #new_room_width.value and no #new_room_height.value
        set rname to 'None' 
    end
    put rname into #room_info
    put rname into <#new_room_notice span/>
end