function its_empty(string_value){ if(string_value=='' || string_value==null) return true; return false; }

function EmptyFields(it){
  for(var i=0; i<it.elements.length; i++) if(its_empty(it.elements[i].value) && it.elements[i].required == 'true') {
      alert("Ошибка: Не заполнены обязательные поля.\r\n"+it.elements[i].title);
      return false;
    }
  return true;
}

function OpenGoods($id){
  window.open('/cat/goods.php?id='+$id, '', 'toolbar=0, location=0, menubar=0, width=580, height=340');
}

function OpenXF($href, $W, $H){ window.open($href, '', 'toolbar=0, location=0, menubar=0, width='+$W+', height='+$H); }


function $(element) {
  if (typeof element == 'string')
    element = document.getElementById(element);
  return element;
}
function show_banner(){
$("bannerContainer").style.display="block";
$("bannerContainer").style.top=screen.height/2-150;
$("bannerContainer").style.left=screen.width/2-210;
$("bannerContainer").innerHTML+='<object style="display:block;" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,29,0" width="420" height="300">'+
  '<param name="movie" value="/images/1.swf">'+
  '<param name="quality" value="high">'+
  '<param name="bgcolor" value="#FFFFFF"/>'+
  '<embed src="/images/1.swf" quality="high" bgcolor="#FFFFFF" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" width="420" height="300"></embed>'+
'</object>';
}
function hide_banner(){
$("bannerContainer").style.display="none";
}