function popup_close(name) {
  document.getElementById(name+"_open").className = "popup_control popup_open open";
  document.getElementById(name+"_close").className = "popup_control popup_close close";
  document.getElementById(name).className = "popup close";
}
function popup_open(name) {
  document.getElementById(name+"_open").className = "popup_control popup_open close";
  document.getElementById(name+"_close").className = "popup_control popup_close open";
  document.getElementById(name).className = "popup open";
}