function chngr(rID)
  {
  	document.getElementById(rID).style.visibility = "visible";
  }
  
function rstr(rID)
  {
  	document.getElementById(rID).style.visibility = "hidden";
  }
function sez_act(rID)
	{
		if (document.getElementById(rID)) {
			document.getElementById(rID).className = "active";
		}
	}
function sez_act_no(rID)
	{
		if (document.getElementById(rID)) {
			document.getElementById(rID).className = "inactive";
		}
	}