;(function(d){var k=d.scrollTo=function(a,i,e){d(window).scrollTo(a,i,e)};k.defaults={axis:'xy',duration:parseFloat(d.fn.jquery)>=1.3?0:1};k.window=function(a){return d(window)._scrollable()};d.fn._scrollable=function(){return this.map(function(){var a=this,i=!a.nodeName||d.inArray(a.nodeName.toLowerCase(),['iframe','#document','html','body'])!=-1;if(!i)return a;var e=(a.contentWindow||a).document||a.ownerDocument||a;return d.browser.safari||e.compatMode=='BackCompat'?e.body:e.documentElement})};d.fn.scrollTo=function(n,j,b){if(typeof j=='object'){b=j;j=0}if(typeof b=='function')b={onAfter:b};if(n=='max')n=9e9;b=d.extend({},k.defaults,b);j=j||b.speed||b.duration;b.queue=b.queue&&b.axis.length>1;if(b.queue)j/=2;b.offset=p(b.offset);b.over=p(b.over);return this._scrollable().each(function(){var q=this,r=d(q),f=n,s,g={},u=r.is('html,body');switch(typeof f){case'number':case'string':if(/^([+-]=)?\d+(\.\d+)?(px|%)?$/.test(f)){f=p(f);break}f=d(f,this);case'object':if(f.is||f.style)s=(f=d(f)).offset()}d.each(b.axis.split(''),function(a,i){var e=i=='x'?'Left':'Top',h=e.toLowerCase(),c='scroll'+e,l=q[c],m=k.max(q,i);if(s){g[c]=s[h]+(u?0:l-r.offset()[h]);if(b.margin){g[c]-=parseInt(f.css('margin'+e))||0;g[c]-=parseInt(f.css('border'+e+'Width'))||0}g[c]+=b.offset[h]||0;if(b.over[h])g[c]+=f[i=='x'?'width':'height']()*b.over[h]}else{var o=f[h];g[c]=o.slice&&o.slice(-1)=='%'?parseFloat(o)/100*m:o}if(/^\d+$/.test(g[c]))g[c]=g[c]<=0?0:Math.min(g[c],m);if(!a&&b.queue){if(l!=g[c])t(b.onAfterFirst);delete g[c]}});t(b.onAfter);function t(a){r.animate(g,j,b.easing,a&&function(){a.call(this,n,b)})}}).end()};k.max=function(a,i){var e=i=='x'?'Width':'Height',h='scroll'+e;if(!d(a).is('html,body'))return a[h]-d(a)[e.toLowerCase()]();var c='client'+e,l=a.ownerDocument.documentElement,m=a.ownerDocument.body;return Math.max(l[h],m[h])-Math.min(l[c],m[c])};function p(a){return typeof a=='object'?a:{top:a,left:a}}})(jQuery);

/* Math eq for radius count */
$.easing.elasout = function(x, t, b, c, d) {
	var s=1.70158;var p=0;var a=c;
	if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
	if (a < Math.abs(c)) { a=c; var s=p/4; }
	else var s = p/(2*Math.PI) * Math.asin (c/a);
	return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
};


var locked = false;
var current = 0;
var previous;
var next;

$(document).ready(function(){
	$('#showcase .item').css('opacity','0.15');
	$('#smallcase-'+projecten[current]).css('opacity',1);
	$('#btn-left').click(function(){
		if (locked == true) {
			return true;
		}
		locked = true;
		previous = decreaseIndex(current,projecten);
		current = previous;
		$('#btn-left, #btn-right').fadeOut(500);
		$('#showcase .item').css('opacity', '0.15');
		$('#smallcase-'+projecten[previous]).animate({
			'opacity': 1
		}, 740);
		$('#btn-left, #btn-right').fadeOut(500);
		$('#slider').scrollTo('#wrap-'+projecten[previous], 1200, {
			onAfter: function(){
				locked = false;
				$('#btn-left, #btn-right').fadeIn(500);
			}
		});
		$('#showcase').scrollTo('#smallcase-'+projecten[previous], 1050);
	});
	$('#btn-right').click(function(){
		if (locked == true) {
			return true;
		}
		locked = true;
		next = increaseIndex(current,projecten);
		current = next;
		$('#btn-left, #btn-right').fadeOut(500);
		$('#showcase .item').css('opacity', '0.15');
		$('#smallcase-'+projecten[next]).animate({
			'opacity': 1
		}, 740);
		$('#slider').scrollTo('#wrap-'+projecten[next], 1200, {
			onAfter: function(){
				locked = false;
				$('#btn-left, #btn-right').fadeIn(500);
			}
		});
		$('#showcase').scrollTo('#smallcase-'+projecten[next], 1050);
	});
	$('div.item-wrapper div.item').css('opacity','0.95');
	$('.w3-box').css('opacity','0.15');
});

function show(project_id) {
	if (locked == true) {
		return;
	}
	locked = true;
	next = increaseIndex(current,projecten);
	current = next;
	$('#btn-left, #btn-right').fadeOut(500);
	$('#showcase .item').css('opacity', '0.15');
	$('#smallcase-'+project_id).animate({
		'opacity': 1
	}, 740);
	$('#slider').scrollTo('#wrap-'+project_id, 1200, {
		onAfter: function(){
			locked = false;
			$('#btn-left, #btn-right').fadeIn(500);
		}
	});
	$('#showcase').scrollTo('#smallcase-'+project_id, 1050);
}

function decreaseIndex(index,projecten) {
	index = (index - 1);
	if (typeof(projecten[index]) == "undefined") {
		index = (projecten.length - 1);
	}
	return index;
}

function increaseIndex(index,projecten) {
	index = (index + 1);
	if (typeof(projecten[index]) == "undefined") {
		index = 0;
	}
	return index;
}
$(document).ready(function(){
	$('#slider .item').corner('4px')
})