var rollOvers = new Array(); 
rollOvers["navSearch"] = "_search_over";
rollOvers["navContact"] = "_contact_over";
rollOvers["navLit"] = "_lit_over";
rollOvers["navArt"] = "_art_over";
rollOvers["navNews"] = "_news_over";
rollOvers["navAbout"] = "_about_over";
rollOvers["navHome"] = "_home_over";

var selid = 'navBlank';
var menutimer;

$(function(){
	
	//lightbox
	$("a[rel^='lightbox']").prettyPhoto({
			animationSpeed: 'slow',
			padding: 40,
			opacity: 0.85,
			showTitle: false,
			allowresize: true,
			counter_separator_label: '/',
			theme: 'light_rounded'
	});
	
	//image rollovers
	$('.ro').mbRollover( {endStr: '_on'} );

	//build nav rollovers
	hideAll();
	selid = $("#navBtm").attr("class");
	$("#"+selid).show();
	
	if(selid == "navBlank" || selid=="navSearch" || selid=="navContact" || selid=="navHome"){
		$(".navMapLink").hover(function(){
			setNav("nav" + $(this).attr("alt"));
		}, function(){
			unsetNav();
		});
		$(".selectNav").hover(function(){
			loadNav();
		}, function(){
			menutimer = setTimeout("removeNav()", 1500);
		});
	}else{
		$(".navMapLink").hover(function(){
			selid = "nav" + $(this).attr("alt");
			navRollover();
		}, function(){
			navRollout();
		});
	}
});

//functions
function navRollout(){
	if($("#"+selid).attr("class") == "selectNav" || $("#"+selid).attr("class") == "")
		$("#navTopImg").attr("src", "/images/nav_blank.gif");
	else
		$("#navTopImg").attr("src", "/images/navol_blank.gif");
}
function navRollover(){
	if($("#"+selid).attr("class") == "selectNav")
		var rolloverimg = "/images/nav"+rollOvers[selid]+".gif";
	else
		var rolloverimg = "/images/navol"+rollOvers[selid]+".gif";
	$("#navTopImg").attr("src", rolloverimg);
}
function setNav(which){
	selid = which;
	navRollover();
	loadNav();
}
function loadNav(){
	clearTimeout(menutimer);
	hideAll();
	$("#"+selid).show();	
}
function unsetNav(){
	navRollout();
	menutimer = setTimeout("removeNav()", 1500);
}
function removeNav()
{
	$("#"+selid).hide();
	selid = "blankNav";
	$("#"+selid).show();
}
function hideAll()
{
	$('.selectNav').each(function(){
		$(this).hide();
	});
}
function _scrollUp(){
	$('html,body').animate({scrollTop: 0}, 1000, 'easeOutBack');
}