var popupc = null;
 function popup_contact(URL,winname) {
  popupc = window.open('', winname,'width=420,height=460,left='+(screen.width*0.5-200)+',top='+(screen.height*0.5-230)+',toolbar=no,menubar=no,status=no,resizable=no,scrollbars=no');
  if (popupc != null) {
    if (popupc.opener == null) {
        popupc.opener = self;
          self.location.href=document.location;
    }
    popupc.location.href = URL
    popupc.focus();
  }
}