var win = null;
function CenterWindow(mypage,myname,w,h,scroll){
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings ='height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',resizable'
	win = window.open(mypage,myname,settings)
}

function close_wnd ()
{
// предка - перегрузить
window.opener.location.reload();
// себя закрыть
self.close();
return false;
}

function get_gift(){
  if(!document.forms['gifts']) return false
  var frm = document.forms['gifts']
  for (var i=0;i<frm.elements.length;i++)
    if(frm.elements[i].name='gift' && frm.elements[i].checked)
      return frm.elements[i].value
  return false;
}

function cg(obj) {
  if(tmp=get_gift()) {
    window.location.href=obj.href + '&gift=' + tmp
    return false
  }
  return true
}