function showImg(image) {
  url = 'http://www.wirex.pl/images/display.php?img='+ image;
  window.open(url, 'Galeria','toolbar=0,location=0,directories=0,menuBar=0,scrollbars=0,resizable=1,width=640,height=480');
}

function findObj(objId) {
  if (document.layers) { //Netscape 4
     myObj = eval('document.' + objId);
  }
  else if (navigator.userAgent.indexOf("Opera") != -1) { //Opera
     //myObj = eval('document.all.' + objId);
     myObj = document.getElementById(objId);
  }
  else if (document.all && !document.getElementById) { //IE 4
     myObj = eval('document.all.' + objId);
  }
  else if (document.getElementById) { //Netscape 6 & IE 5
     myObj = document.getElementById(objId);
  }
  else {
     alert('This website uses DHTML. We recommend you upgrade your browser.');
  }
  return myObj;
}

function displayList(listName) {
  root = findObj('machine[' + listName + ']');
  list = findObj(listName + '_list');
  quantity = findObj('machine[' + listName + '][quantity]');

  if(root.checked== true){
  	list.style.display = 'block';	
  	quantity.disabled = false;
  }
  else
  {
  	list.style.display = 'none';
  	quantity.disabled = true;
  }
}

function swapField(caller, field) { 
  caller = findObj(caller);
  field = findObj(field);

  if(caller.checked == true){	
  	field.disabled = false;
  	field.focus();
  }
  else
  {
  	field.disabled = true;
  }
}

function validateOrder(companyField, nameField, addressField, phoneField, nipField, message)
{
  company = findObj(companyField);
  cname = findObj(nameField);
  address = findObj(addressField);
  phone = findObj(phoneField);
  nip = findObj(nipField);

  if ((company.value.length=="") || (cname.value.length=="") || (address.value.length=="") || (phone.value.length=="") || (nip.value.length==""))
  {
    alert(message);
    return false;
  }
  return true;
}