function showTimer() {
      document.getElementById("download_timer_bg").style.visibility = "visible";
      document.getElementById("download_timer").style.visibility = "visible";
    }
    function hideTimer() {
      document.getElementById("download_timer_bg").style.visibility = "hidden";
      document.getElementById("download_timer").style.visibility = "hidden";
    }
	
function showMenu(divID) {
      document.getElementById(divID).style.visibility = "visible";
}
function hideMenu(divID) {
      document.getElementById(divID).style.visibility = "hidden";
}

function showPopUp(divID) {
        
    document.getElementById("bg_lightbox").style.visibility = "visible";
    document.getElementById(divID).style.visibility = "visible";
        
}
    
function hidePopUp(divID) {
  document.getElementById("bg_lightbox").style.visibility = "hidden";
  document.getElementById(divID).style.visibility = "hidden";
}