// JavaScript Document
function toggle( targetId ){
  if (document.getElementById){
  		target = document.getElementById( targetId );
  			if (target.style.visibility == "visible"){
  				target.style.visibility = "hidden";
  			} else {
  				target.style.visibility = "visible";
  			}
  	}
}




function	show_home()
	{
		var	target;
		target = document.getElementById("layout_home_arrow");
		
		target.style.visibility = "visible";
	}
function	hide_home()
	{
		var	target;
		target = document.getElementById("layout_home_arrow");
		
		target.style.visibility = "hidden";
	}
	
	
	
	
	
	
	
	
function	show_history()
	{
		var	target;
		target = document.getElementById("layout_history_arrow");
		
		target.style.visibility = "visible";
	}
function	hide_history()
	{
		var	target;
		target = document.getElementById("layout_history_arrow");
		
		target.style.visibility = "hidden";
	}
	
	
	
	
	
function	show_news()
	{
		var	target;
		target = document.getElementById("layout_news_arrow");
		
		target.style.visibility = "visible";
	}
function	hide_news()
	{
		var	target;
		target = document.getElementById("layout_news_arrow");
		
		target.style.visibility = "hidden";
	}
	
	
function	show_programs()
	{
		var	target;
		target = document.getElementById("layout_programs_arrow");
		
		target.style.visibility = "visible";
	}
function	hide_programs()
	{
		var	target;
		target = document.getElementById("layout_programs_arrow");
		
		target.style.visibility = "hidden";
	}
	
	
	function	show_pub()
	{
		var	target;
		target = document.getElementById("layout_pub_arrow");
		
		target.style.visibility = "visible";
	}
function	hide_pub()
	{
		var	target;
		target = document.getElementById("layout_pub_arrow");
		
		target.style.visibility = "hidden";
	}