function get_oz(oz)
{
  var rate = 16;
  var ozF = parseFloat(oz);
  var ozS = (ozF * rate).toString(10);
  var i = ozS.indexOf('.',0);
  var result = 0;
  if(0 <= i){
    result = ozS.substring(0,i);
  }
  return result;
}

function get_weight_display(weight)
{
  if (weight.length != 0) {
    var i = weight.indexOf('.',0);
    if(0 <= i){
      var lbs = weight.substring(0,i);
      var oz = "0." + weight.substring(i+1,i+3);
      var display_value = lbs + "lbs" + get_oz(oz) + "oz";
    } else {
      var display_value = null;
    }
  } else {
    var display_value = null;
  }

  document.getElementById('net_weight_display').innerHTML = display_value;
  document.getElementById('orders_summary_net_weight_display').value = display_value;
}

function change_qty_options(product_number) {
  document.forms[0].action = "new_orders_item";
  document.getElementById('selected_number').value = product_number;
  document.forms[0].submit();
}

function change_text_list(form, name, value){
  index = form.product_type.selectedIndex;
  form.text_name.options.length = value[index].length;
  for(i = 0; i < name[index].length; i++){
    form.text_name.options[i] = new Option(name[index][i], value[index][i]);
  }
}

function fold_menu_bar(inputData) {
  var objID=document.getElementById( "target_" + inputData );
  var buttonID=document.getElementById( "category_" + inputData );
  if(objID.className=='close') {
    objID.style.display='block';
    objID.className='open';
    buttonID.innerHTML = ' - ';
  }else{
    objID.style.display='none';
    objID.className='close';
    buttonID.innerHTML = '+';
  }
}

function send_information_params(form){
  var obj = document.getElementById('product_type_id');
  document.getElementById('target_info_product_type_status_id').value = obj.options[obj.options.selectedIndex].value;
  form.submit();
}