if (document.images) {
	
//top nav

	agstarover = new Image
	agstarover.src = "images/agstar_over.gif"
	agstarup = new Image
	agstarup.src = "images/agstar_up.gif"
	
	cmopover = new Image
	cmopover.src="images/cmop_over.gif"
	cmopup = new Image
	cmopup.src = "images/cmop_up.gif"
	
	gasstarover = new Image
	gasstarover.src = "images/gasstar_over.gif"
	gasstarup = new Image
	gasstarup.src = "images/gasstar_up.gif"
	
	lmopover = new Image
	lmopover.src = "images/lmop_over.gif"
	lmopup = new Image
	lmopup.src = "images/lmop_up.gif"
		
	
}
else {

	document.agstar= " "
	agstarover = " "
	agstarup = " "
	
	document.cmop = " "
	cmopover = " "
	cmopup = " "

	document.gasstar = " "
	gasstarover = " "
	gasstarup = " "
	
	document.lmop = " "
	lmopover = " "
	lmopup = " "
	
}