function HomeSpecialContentsNavigation()	{
	var buttons = [];
	
	this.newButton = function( DOMElementButton, DOMElementContent )	{
		
		var button = new Button( DOMElementButton, DOMElementContent );
		
		button.onclick = selectButton;
		buttons.push( button );
		
		if( buttons.length == 1 )	{
			button.activate();
		}
		else	{
			button.deactivate();
		}
		
	};
	
	function selectButton()	{
		for( var i = 0; i < buttons.length; i++ )	{
			if( buttons[i] == this )	{
				buttons[i].activate();
			}
			else	{
				buttons[i].deactivate();
			}
		}
	}
		
	return this;
}

function Button( DOMElementButton, DOMElementContent )	{
				
	var content = new Content( DOMElementContent );
	
	DOMElementButton.activate = function()	{
		DOMElementButton.className = 'activated';
		content.show();
	};
	
	DOMElementButton.deactivate = function()	{
		DOMElementButton.className = 'deactivated';
		content.hide();
	};
	
	return DOMElementButton;
}

function Content( DOMElementContent  )	{
	
	var opacityInterval = null;
	var opacityIndex = 0;
	DOMElementContent.style.zoom = 1;
	
	this.show = function()	{
		DOMElementContent.style.display = 'block';
	};
	
	this.hide = function()	{
		DOMElementContent.style.display = 'none';
	};
	
	return this;
}
/*
var homeSpecialContents = new HomeSpecialContentsNavigation ();
			
homeSpecialContents.newButton( document.getElementById( 'special_nav_button_1' ), document.getElementById( 'special_nav_content_1' ) );*/