if (document.images) {


	  var nav_oboen = new Image()
	  nav_oboen.src = "/images/sub/nav_oboe.jpg"
	  var nav_oboea = new Image()
	  nav_oboea.src = "/images/sub/nav_oboe_over.jpg"
	  
	  var nav_bassoonn = new Image()
	  nav_bassoonn.src = "/images/sub/nav_bassoon.jpg"
	  var nav_bassoona = new Image()
	  nav_bassoona.src = "/images/sub/nav_bassoon_over.jpg"
	  
	  var nav_saxophonen = new Image()
	  nav_saxophonen.src = "/images/sub/nav_saxophone.jpg"
	  var nav_saxophonea = new Image()
	  nav_saxophonea.src = "/images/sub/nav_saxophone_over.jpg"
	  
	  var nav_clarinetn = new Image()
	  nav_clarinetn.src = "/images/sub/nav_clarinet.jpg"
	  var nav_clarineta = new Image()
	  nav_clarineta.src = "/images/sub/nav_clarinet_over.jpg"
	  
	  var nav_fluten = new Image()
	  nav_fluten.src = "/images/sub/nav_flute.jpg"
	  var nav_flutea = new Image()
	  nav_flutea.src = "/images/sub/nav_flute_over.jpg"
	  
	  var nav_hornn = new Image()
	  nav_hornn.src = "/images/sub/nav_eh_up.jpg"
	  var nav_horna = new Image()
	  nav_horna.src = "/images/sub/nav_eh_over.jpg"
	  
	  var nav_othern = new Image()
	  nav_othern.src = "/images/sub/nav_trumpet_up.jpg"
	  var nav_othera = new Image()
	  nav_othera.src = "/images/sub/nav_trumpet_over.jpg"
	  
	  var nav_accessoriesn = new Image()
	  nav_accessoriesn.src = "/images/sub/nav_acc.jpg"
	  var nav_accessoriesa = new Image()
	  nav_accessoriesa.src = "/images/sub/nav_acc_over.jpg"
	  
	  var nav_rentalsn = new Image()
	  nav_rentalsn.src = "/images/sub/nav_rentals.jpg"
	  var nav_rentalsa = new Image()
	  nav_rentalsa.src = "/images/sub/nav_rentals_over.jpg"
	  
	  var nav_repairsn = new Image()
	  nav_repairsn.src = "/images/sub/nav_repairs.jpg"
	  var nav_repairsa = new Image()
	  nav_repairsa.src = "/images/sub/nav_repairs_over.jpg"
	  
}

function act(imgName) {
	if (document.images) 
		document[imgName].src = eval(imgName + 'a.src')
}

function inact(imgName) {

	if (document.images)
	  document[imgName].src = eval(imgName + 'n.src')
}
	
	
	
// toggle display of blocks
function toggle(field) {
	if(document.getElementById) {
		
		if (document.getElementById(field + '_o').style.display=="block"){
			document.getElementById(field + '_o').style.display="none";
			document.getElementById(field + '_c').style.display="block";
			
		} else {
			document.getElementById(field + '_c').style.display="none";
			document.getElementById(field + '_o').style.display="block";
		}
	}
}