var lastMenu = "";

if (document.layers) {
	visible = 'show';
	hidden = 'hide';
} 
else if (document.all) {
	visible = 'visible';
	hidden = 'hidden';
}

function barTog(menu) {
	if (document.layers) {
		blahMenu = document.layers[menu];
	} 
	else if (document.all) {
		blahMenu = document.all(menu).style;
	}
	
	if (blahMenu.visibility == visible) {
		blahMenu.visibility = hidden;
		document.bhome_n.src='http://shell.hiwaay.net/~sgreen/ham/images/bhome_n.jpg';
	} 
	else {
		blahMenu.visibility = visible;
		document.bhome_n.src='http://shell.hiwaay.net/~sgreen/ham/images/bhome_a.jpg';
	}
	if (lastMenu !="" && lastMenu !=blahMenu)
		lastMenu.visibility = hidden;
	lastMenu = blahMenu;
}

function barhloan(menua) {
	if (document.layers) {
		hloanMenu = document.layers[menua];
	}
	else if (document.all) {
		hloanMenu = document.all(menua).style;
	}
	if (hloanMenu.visibility == visible) {
		hloanMenu.visibility = hidden;
		document.hloan_n.src='http://shell.hiwaay.net/~sgreen/ham/images/hloan_n.jpg';
	} 
	else {
		hloanMenu.visibility = visible;
		document.hloan_n.src='http://shell.hiwaay.net/~sgreen/ham/images/hloan_m.jpg';
	}
	if (lastMenu !="" && lastMenu !=hloanMenu)
		lastMenu.visibility = hidden;
	lastMenu = hloanMenu;
}

function barnhome(menub) {
	if (lastMenu !=null)
	if (document.layers) {
		nhomeMenu = document.layers[menub];
	} 
	else if (document.all) {
		nhomeMenu = document.all(menub).style;
	}
	
	if (nhomeMenu.visibility == visible) {
		nhomeMenu.visibility = hidden;
		document.nhome_n.src='http://shell.hiwaay.net/~sgreen/ham/images/nhome_n.jpg';
	} 
	else {
		nhomeMenu.visibility = visible;
		document.nhome_n.src='http://shell.hiwaay.net/~sgreen/ham/images/nhome_a.jpg';
	}
	if (lastMenu !="" && lastMenu !=nhomeMenu)
		lastMenu.visibility = hidden;
	lastMenu = nhomeMenu;
}

function barhimpr(menuc) {
	if (document.layers) {
		himprMenu = document.layers[menuc];
	} 
	else if (document.all) {
		himprMenu = document.all(menuc).style;
	}
	if (himprMenu.visibility == visible) {
		himprMenu.visibility = hidden;
		document.himpr_n.src='http://shell.hiwaay.net/~sgreen/ham/images/himpr_n.jpg';
	} 
	else {
		himprMenu.visibility = visible;
		document.himpr_n.src='http://shell.hiwaay.net/~sgreen/ham/images/himpr_a.jpg';
	}
	if (lastMenu !="" && lastMenu !=himprMenu)
		lastMenu.visibility = hidden;
	lastMenu = himprMenu;
}

function barrefi(menud) {
	if (document.layers) {
		refiMenu = document.layers[menud];
	} 
	else if (document.all) {
		refiMenu = document.all(menud).style;
	}
	if (refiMenu.visibility == visible) {
		refiMenu.visibility = hidden;
		document.refi_n.src='http://shell.hiwaay.net/~sgreen/ham/images/refi_n.jpg';
	} 
	else {
		refiMenu.visibility = visible;
		document.refi_n.src='http://shell.hiwaay.net/~sgreen/ham/images/refi_a.jpg';
	}
	if (lastMenu !="" && lastMenu !=refiMenu)
		lastMenu.visibility = hidden;
	lastMenu = refiMenu;
}

function barhequ(menue) {
	if (document.layers) {
		hequMenu = document.layers[menue];
	} 
	else if (document.all) {
		hequMenu = document.all(menue).style;
	}
	if (hequMenu.visibility == visible) {
		hequMenu.visibility = hidden;
		document.hequ_n.src='http://shell.hiwaay.net/~sgreen/ham/images/hequ_n.jpg';
	} 
	else {
		hequMenu.visibility = visible;
		document.hequ_n.src='http://shell.hiwaay.net/~sgreen/ham/images/hequ_a.jpg';
	}
	if (lastMenu !="" && lastMenu !=hequMenu)
		lastMenu.visibility = hidden;
	lastMenu = hequMenu;
}

function barfoptions(menuf) {
	if (document.layers) {
		foptionsMenu = document.layers[menuf];
	} 
	else if (document.all) {
		foptionsMenu = document.all(menuf).style;
	}
	
	if (foptionsMenu.visibility == visible) {
		foptionsMenu.visibility = hidden;
		document.foptions_n.src='http://shell.hiwaay.net/~sgreen/ham/images/foptions_n.jpg';
	} 
	else {
		foptionsMenu.visibility = visible;
		document.foptions_n.src='http://shell.hiwaay.net/~sgreen/ham/images/foptions_a.jpg';
	}
	if (lastMenu !="" && lastMenu !=foptionsMenu)
		lastMenu.visibility = hidden;
	lastMenu = foptionsMenu;
}

function barcalc(menug) {
	if (document.layers) {
		calcMenu = document.layers[menug];
	} 
	else if (document.all) {
		calcMenu = document.all(menug).style;
	}
	if (calcMenu.visibility == visible) {
		calcMenu.visibility = hidden;
		document.calc_n.src='http://shell.hiwaay.net/~sgreen/ham/images/calc_n.jpg';
	} 
	else {
		calcMenu.visibility = visible;
		document.calc_n.src='http://shell.hiwaay.net/~sgreen/ham/images/calc_a.jpg';
	}
	if (lastMenu !="" && lastMenu !=calcMenu)
		lastMenu.visibility = hidden;
	lastMenu = calcMenu;
}

function barlres(menug) {
	if (document.layers) {
		lresMenu = document.layers[menug];
	} 
	else if (document.all) {
		lresMenu = document.all(menug).style;
	}
	
	if (lresMenu.visibility == visible) {
		lresMenu.visibility = hidden;
		document.lres_n.src='http://shell.hiwaay.net/~sgreen/ham/images/lres_n.jpg';
	} 
	else {
		lresMenu.visibility = visible;
		document.lres_n.src='http://shell.hiwaay.net/~sgreen/ham/images/lres_a.jpg';
	}
	if (lastMenu !="" && lastMenu !=lresMenu)
		lastMenu.visibility = hidden;
	lastMenu = lresMenu;
}

function barbshelf(menuh) {
	if (document.layers) {
		bshelfMenu = document.layers[menuh];
	}
	else if (document.all) {
		bshelfMenu = document.all(menuh).style;
	}

	if (bshelfMenu.visibility == visible) {
		bshelfMenu.visibility = hidden;
		document.bshelf_n.src='http://shell.hiwaay.net/~sgreen/ham/images/bshelf_n.jpg';
	} 
	else {
		bshelfMenu.visibility = visible;
		document.bshelf_n.src='http://shell.hiwaay.net/~sgreen/ham/images/bshelf_a.jpg';
	}
	if (lastMenu !="" && lastMenu !=bshelfMenu)
		lastMenu.visibility = hidden;
	lastMenu = bshelfMenu;
}

function barfaq(menui) {
	if (document.layers) {
		faqMenu = document.layers[menui];
	}
	else if (document.all) {
		faqMenu = document.all(menui).style;
	}
	
	if (faqMenu.visibility == visible) {
		faqMenu.visibility = hidden;
		document.faq_n.src='http://shell.hiwaay.net/~sgreen/ham/images/faq_n.jpg';
	}
	else {
		faqMenu.visibility = visible;
		document.faq_n.src='http://shell.hiwaay.net/~sgreen/ham/images/faq_a.jpg';
	}
	if (lastMenu !="" && lastMenu !=faqMenu)
		lastMenu.visibility = hidden;
	lastMenu = faqMenu;
}