a1=new Image(45,45)
	a1.src="images/nav-leonard-sue.jpg"
	a2=new Image(45,45)
	a2.src="images/nav-leonard-sue-on.jpg"
	
	b1=new Image(45,45)
	b1.src="images/nav-she.jpg"
	b2=new Image(45,45)
	b2.src="images/nav-she-on.jpg"

	c1=new Image(45,45)
	c1.src="images/nav-leonard.jpg"
	c2=new Image(45,45)
	c2.src="images/nav-leonard-on.jpg"
	
	
	function filter(imagename,objectsrc){
	if (document.images)
	document.images[imagename].src=eval(objectsrc+".src")
	}