if (document.images) {
	var images = [];
	
	images[images.length] = new Image(); 
	images[images.length - 1].src = "/common/images/interface/nav--about-us-over.gif"; 
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/nav--chapters-over.gif"; 
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/nav--consultants-corner-over.gif";
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/nav--events-calendar-over.gif";	
	//images[images.length] = new Image(); 
	//images[images.length - 1].src= "/common/images/interface/nav--media-centre-over.gif"; 
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/nav--resources-over.gif"; 
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/nav--supplier-central-over.gif"; 	
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/national_conference/nav--exhibitors-over.gif"; 
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/national_conference/nav--program-over.gif"; 
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/national_conference/nav--register-over.gif"; 
	//images[images.length] = new Image(); 
	//images[images.length - 1].src= "/common/images/interface/national_conference/nav--resources-hover.jpg"; 	
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/national_conference/nav--speakers-over.gif"; 
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/national_conference/nav--sponsors-over.gif"; 
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/national_conference/nav--travel-over.gif";
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/admin--cart-over.gif";
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/admin--contact-over.gif";
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/admin--home-over.gif";
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/admin--members-over.gif";
	//images[images.length] = new Image(); 
	//images[images.length - 1].src= "/common/images/interface/admin--rss-over.gif";	
	images[images.length] = new Image(); 
	images[images.length - 1].src= "/common/images/interface/admin--search-over.gif";
}

function changeImages() {
	if (document.images) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = '/common/images/interface/'+changeImages.arguments[i+1];
		}
	}
}

function updateDues() {
	if( navigator.appName == "Netscape" && parseInt(navigator.appVersion) < 5 ) {
		membership_price = document.forms['membership'].membership_price;
		chapter_price = document.forms['membership'].chapter_price;
		niri_price = document.forms['membership'].niri_price;
		membership_prorated = document.forms['membership'].membership_prorated;
		chapter_prorated = document.forms['membership'].chapter_prorated;
		niri_prorated = document.forms['membership'].niri_prorated;

		totalprice = document.forms['membership'].totaldues;
		chapter = document.forms['membership'].chapter;
		optional = document.forms['membership'].niri;
		prorated = documnet.forms['membership'].prorated;
	} else {
		membership_price = document.membership.membership_price;
		chapter_price = document.membership.chapter_price;
		niri_price = document.membership.niri_price;
		membership_prorated = document.membership.membership_prorated;
		chapter_prorated = document.membership.chapter_prorated;
		niri_prorated = document.membership.niri_prorated;

		totalprice = document.membership.totaldues;
		chapter = document.membership.chapter;
		optional = document.membership.niri;
		prorated = document.membership.prorated;
	}

	chapter_name = "";
	for(i = 0; i < chapter.length; i++) {
		if( chapter[i].checked )
			chapter_name = chapter[i].value
	}
		
	/*total = 0.00;
	if( chapter_name != "" )
		total += parseFloat(membership_price.value);
	
	if( chapter_name != "" && chapter_name != "None" )
		total += parseFloat(chapter_price.value);
	

	if( optional.checked )
		total += parseFloat(niri_price.value);
	
		
	if( prorated && prorated.checked ) {
		total += parseFloat(membership_prorated.value);
		if( chapter_name != "" && chapter_name != "None" )
			total += parseFloat(chapter_prorated.value);
		if( optional.checked )
			total += parseFloat(niri_prorated.value);
	}*/

		total = 0.00;
		if( chapter_name != "" )
			total += parseFloat($('#membership_price_with_tax').val());

		if( chapter_name != "" && chapter_name != "None" )
			total += parseFloat($('#chapter_price_with_tax').val());

		if( optional.checked )
			total += parseFloat($('#niri_price_with_tax').val());

		if( prorated && prorated.checked ) {
			total += parseFloat(membership_prorated.value);
			if( chapter_name != "" && chapter_name != "None" )
				total += parseFloat(chapter_prorated.value);
			if( optional.checked )
				total += parseFloat(niri_prorated.value);
		}
	
	totalprice.value = total;
			
	if (totalprice.value.lastIndexOf(".") < 0)
		totalprice.value = totalprice.value + ".00"; 
	else if (totalprice.value.length - totalprice.value.lastIndexOf(".") == 1)
		totalprice.value = totalprice.value + "00"; 
	else if (totalprice.value.length - totalprice.value.lastIndexOf(".") == 2)
		totalprice.value = totalprice.value + "0"; 
	else if (totalprice.value.length - totalprice.value.lastIndexOf(".") > 3 )
		totalprice.value = totalprice.value.substring(0, totalprice.value.lastIndexOf(".") + 3);
}