var pulseState = 0;

$(document).ready(function () {
	jQuery("#centercontent").find("h1:first").remove();
	
	var links = $("#landingNavigation").find("a");
	var prevLink = $(links).eq(0);

	$(links).not(":eq(0)").each(function(){$(this).find("img:eq(1)").hide()});
	
	$(links).eq(0).find("img:eq(0)").hide();
	
	$("#landingContent").children().not(":eq(0)").hide();
	
	$(links).each(function () {
		var link = $(this)
		$(link).click(function (e) {
			e.preventDefault()
			//need to change button here
			$(prevLink).find("img:eq(1)").hide();
			$(prevLink).find("img:eq(0)").show();
			
			$(link).find("img:eq(0)").hide();
			$(link).find("img:eq(1)").show();
			
			prevLink = $(this);
			
			$("#landingContent").children(":visible").fadeOut(400, function () {
				$("#landingContent").children().eq( $(link).parent().prevAll().length ).fadeIn(400);
			});
		});
	});
	
	//var distx = 0, disty = 0;
	var dist = 0;
	var calcHeight = 0;
	var maxHeight = 25;
	//var maxDistx = 180, maxDisty = 180;
	var maxDist = 180;
	var minHeight = 20;
	var diff = maxHeight - minHeight;
	var centerX = 0, centerY = 0;
	
	$(document).mousemove(function (e) {
		//alert(e.pageX +', '+ e.pageY);
		$("#landingNavigation").find("img").each(function () {
			var img = $(this);
			centerX = $(img).offset().left + $(img).width() / 2;
			centerY = $(img).offset().top + $(img).height() / 2;
			dist = Math.sqrt(Math.pow((centerX - e.pageX),2) + Math.pow((centerY - e.pageY),2));
			//distx = Math.abs(centerX - e.pageX);
			//disty = Math.abs(centerY - e.pageY);
			if(dist > maxDist) {
				calcHeight = minHeight;
			}
			else {
				calcHeight = maxHeight - diff * dist / maxDist;
				//calcHeight = (diff * Math.min(distx / maxDistx, 1) * Math.min(disty / maxDisty, 1)) ;
			}
			
			$(img).css({"height":calcHeight});
		});
	});
});