a1=new Image(45,45)
	a1.src="images/nav-off_01.gif"
	a2=new Image(45,45)
	a2.src="images/nav-on_01.gif"
	
	b1=new Image(45,45)
	b1.src="images/nav-off_02.gif"
	b2=new Image(45,45)
	b2.src="images/nav-on_02.gif"
	
	c1=new Image(45,45)
	c1.src="images/nav-off_03.gif"
	c2=new Image(45,45)
	c2.src="images/nav-on_03.gif"
	
	d1=new Image(45,45)
	d1.src="images/nav-off_04.gif"
	d2=new Image(45,45)
	d2.src="images/nav-on_04.gif"
	
	e1=new Image(45,45)
	e1.src="images/nav-off_05.gif"
	e2=new Image(45,45)
	e2.src="images/nav-on_05.gif"
	
	f1=new Image(45,45)
	f1.src="images/nav-off_06.gif"
	f2=new Image(45,45)
	f2.src="images/nav-on_06.gif"	
	
	g1=new Image(45,45)
	g1.src="images/nav-off_07.gif"
	g2=new Image(45,45)
	g2.src="images/nav-on_07.gif"	
	
	h1=new Image(45,45)
	h1.src="images/nav-off_08.gif"
	h2=new Image(45,45)
	h2.src="images/nav-on_08.gif"	
	
	i1=new Image(45,45)
	i1.src="images/nav-off_09.jpg"
	i2=new Image(45,45)
	i2.src="images/nav-on_09.gif"	
	
	
	j1=new Image(45,45)
	j1.src="images/nav-off_10.gif"
	j2=new Image(45,45)
	j2.src="images/nav-on_10.gif"	

	function filter(imagename,objectsrc){
	if (document.images)
	document.images[imagename].src=eval(objectsrc+".src")
	}