if (document.images)
	{
	image1on=new Image();
	image1on.src="img/menu_on_home.jpg";
	image1off=new Image();
	image1off.src="img/menu_off_home.jpg";

	image2on=new Image();
	image2on.src="img/menu_on_rodas.jpg";
	image2off=new Image();
	image2off.src="img/menu_off_rodas.jpg";

	image3on=new Image();
	image3on.src="img/menu_on_cilindros.jpg";
	image3off=new Image();
	image3off.src="img/menu_off_cilindros.jpg";

	image4on=new Image();
	image4on.src="img/menu_on_aneis.jpg";
	image4off=new Image();
	image4off.src="img/menu_off_aneis.jpg";

	image5on=new Image();
	image5on.src="img/menu_on_especiais.jpg";;
	image5off=new Image();
	image5off.src="img/menu_off_especiais.jpg";

	image6on=new Image();
	image6on.src="img/menu_on_06.gif";;
	image6off=new Image();
	image6off.src="img/menu_off_06.gif";
	
	image7on=new Image();
	image7on.src="img/menu_on_07.gif";;
	image7off=new Image();
	image7off.src="img/menu_off_07.gif";
	
	image8on=new Image();
	image8on.src="img/menu_on_08.gif";;
	image8off=new Image();
	image8off.src="img/menu_off_08.gif";
	
	image9on=new Image();
	image9on.src="img/menu_on_09.gif";;
	image9off=new Image();
	image9off.src="img/menu_off_09.gif";

	}

function turnOn(imageName)
	{
	if (document.images)
		{
		document[imageName].src=eval(imageName+"on.src");
		}
	}

function turnOff(imageName)
	{
		if (document.images)
		{
		document[imageName].src=eval(imageName+"off.src");
		}
	}