/*!
 * parallax.js v1.3.1 (http://pixelcog.github.io/parallax.js/)
 * @copyright 2015 PixelCog, Inc.
 * @license MIT (https://github.com/pixelcog/parallax.js/blob/master/LICENSE)
 */
!function(t,i,e,s){function o(i,e){var h=this;"object"==typeof e&&(delete e.refresh,delete e.render,t.extend(this,e)),this.$element=t(i),!this.imageSrc&&this.$element.is("img")&&(this.imageSrc=this.$element.attr("src"));var r=(this.position+"").toLowerCase().match(/\S+/g)||[];return r.length<1&&r.push("center"),1==r.length&&r.push(r[0]),("top"==r[0]||"bottom"==r[0]||"left"==r[1]||"right"==r[1])&&(r=[r[1],r[0]]),this.positionX!=s&&(r[0]=this.positionX.toLowerCase()),this.positionY!=s&&(r[1]=this.positionY.toLowerCase()),h.positionX=r[0],h.positionY=r[1],"left"!=this.positionX&&"right"!=this.positionX&&(this.positionX=isNaN(parseInt(this.positionX))?"center":parseInt(this.positionX)),"top"!=this.positionY&&"bottom"!=this.positionY&&(this.positionY=isNaN(parseInt(this.positionY))?"center":parseInt(this.positionY)),this.position=this.positionX+(isNaN(this.positionX)?"":"px")+" "+this.positionY+(isNaN(this.positionY)?"":"px"),navigator.userAgent.match(/(iPod|iPhone|iPad)/)?(this.iosFix&&!this.$element.is("img")&&this.$element.css({backgroundImage:"url("+this.imageSrc+")",backgroundSize:"cover",backgroundPosition:this.position}),this):navigator.userAgent.match(/(Android)/)?(this.androidFix&&!this.$element.is("img")&&this.$element.css({backgroundImage:"url("+this.imageSrc+")",backgroundSize:"cover",backgroundPosition:this.position}),this):(this.$mirror=t("<div />").prependTo("body"),this.$slider=t("<img />").prependTo(this.$mirror),this.$mirror.addClass("parallax-mirror").css({visibility:"hidden",zIndex:this.zIndex,position:"fixed",top:0,left:0,overflow:"hidden"}),this.$slider.addClass("parallax-slider").one("load",function(){h.naturalHeight&&h.naturalWidth||(h.naturalHeight=this.naturalHeight||this.height||1,h.naturalWidth=this.naturalWidth||this.width||1),h.aspectRatio=h.naturalWidth/h.naturalHeight,o.isSetup||o.setup(),o.sliders.push(h),o.isFresh=!1,o.requestRender()}),this.$slider[0].src=this.imageSrc,void((this.naturalHeight&&this.naturalWidth||this.$slider[0].complete)&&this.$slider.trigger("load")))}function h(s){return this.each(function(){var h=t(this),r="object"==typeof s&&s;this==i||this==e||h.is("body")?o.configure(r):h.data("px.parallax")||(r=t.extend({},h.data(),r),h.data("px.parallax",new o(this,r))),"string"==typeof s&&o[s]()})}!function(){for(var t=0,e=["ms","moz","webkit","o"],s=0;s<e.length&&!i.requestAnimationFrame;++s)i.requestAnimationFrame=i[e[s]+"RequestAnimationFrame"],i.cancelAnimationFrame=i[e[s]+"CancelAnimationFrame"]||i[e[s]+"CancelRequestAnimationFrame"];i.requestAnimationFrame||(i.requestAnimationFrame=function(e){var s=(new Date).getTime(),o=Math.max(0,16-(s-t)),h=i.setTimeout(function(){e(s+o)},o);return t=s+o,h}),i.cancelAnimationFrame||(i.cancelAnimationFrame=function(t){clearTimeout(t)})}(),t.extend(o.prototype,{speed:.2,bleed:0,zIndex:-100,iosFix:!0,androidFix:!0,position:"center",overScrollFix:!1,refresh:function(){this.boxWidth=this.$element.outerWidth(),this.boxHeight=this.$element.outerHeight()+2*this.bleed,this.boxOffsetTop=this.$element.offset().top-this.bleed,this.boxOffsetLeft=this.$element.offset().left,this.boxOffsetBottom=this.boxOffsetTop+this.boxHeight;var t=o.winHeight,i=o.docHeight,e=Math.min(this.boxOffsetTop,i-t),s=Math.max(this.boxOffsetTop+this.boxHeight-t,0),h=this.boxHeight+(e-s)*(1-this.speed)|0,r=(this.boxOffsetTop-e)*(1-this.speed)|0;if(h*this.aspectRatio>=this.boxWidth){this.imageWidth=h*this.aspectRatio|0,this.imageHeight=h,this.offsetBaseTop=r;var n=this.imageWidth-this.boxWidth;this.offsetLeft="left"==this.positionX?0:"right"==this.positionX?-n:isNaN(this.positionX)?-n/2|0:Math.max(this.positionX,-n)}else{this.imageWidth=this.boxWidth,this.imageHeight=this.boxWidth/this.aspectRatio|0,this.offsetLeft=0;var n=this.imageHeight-h;this.offsetBaseTop="top"==this.positionY?r:"bottom"==this.positionY?r-n:isNaN(this.positionY)?r-n/2|0:r+Math.max(this.positionY,-n)}},render:function(){var t=o.scrollTop,i=o.scrollLeft,e=this.overScrollFix?o.overScroll:0,s=t+o.winHeight;this.visibility=this.boxOffsetBottom>t&&this.boxOffsetTop<s?"visible":"hidden",this.mirrorTop=this.boxOffsetTop-t,this.mirrorLeft=this.boxOffsetLeft-i,this.offsetTop=this.offsetBaseTop-this.mirrorTop*(1-this.speed),this.$mirror.css({transform:"translate3d(0px, 0px, 0px)",visibility:this.visibility,top:this.mirrorTop-e,left:this.mirrorLeft,height:this.boxHeight,width:this.boxWidth}),this.$slider.css({transform:"translate3d(0px, 0px, 0px)",position:"absolute",top:this.offsetTop,left:this.offsetLeft,height:this.imageHeight,width:this.imageWidth,maxWidth:"none"})}}),t.extend(o,{scrollTop:0,scrollLeft:0,winHeight:0,winWidth:0,docHeight:1<<30,docWidth:1<<30,sliders:[],isReady:!1,isFresh:!1,isBusy:!1,setup:function(){if(!this.isReady){var s=t(e),h=t(i);h.on("scroll.px.parallax load.px.parallax",function(){var t=o.docHeight-o.winHeight,i=o.docWidth-o.winWidth;o.scrollTop=Math.max(0,Math.min(t,h.scrollTop())),o.scrollLeft=Math.max(0,Math.min(i,h.scrollLeft())),o.overScroll=Math.max(h.scrollTop()-t,Math.min(h.scrollTop(),0)),o.requestRender()}).on("resize.px.parallax load.px.parallax",function(){o.winHeight=h.height(),o.winWidth=h.width(),o.docHeight=s.height(),o.docWidth=s.width(),o.isFresh=!1,o.requestRender()}),this.isReady=!0}},configure:function(i){"object"==typeof i&&(delete i.refresh,delete i.render,t.extend(this.prototype,i))},refresh:function(){t.each(this.sliders,function(){this.refresh()}),this.isFresh=!0},render:function(){this.isFresh||this.refresh(),t.each(this.sliders,function(){this.render()})},requestRender:function(){var t=this;this.isBusy||(this.isBusy=!0,i.requestAnimationFrame(function(){t.render(),t.isBusy=!1}))}});var r=t.fn.parallax;t.fn.parallax=h,t.fn.parallax.Constructor=o,t.fn.parallax.noConflict=function(){return t.fn.parallax=r,this},t(e).on("ready.px.parallax.data-api",function(){t('[data-parallax="scroll"]').parallax()})}(jQuery,window,document);
$(document).ready(function() {
    $(".parallax-window").hide();

    var elements = $(".parallax-window");
    var elementCount = elements.size();
    var elementsToShow = 1;
    var alreadyChoosen = ",";
    var i = 0;
    while (i < elementsToShow) {
        var rand = Math.floor(Math.random() * elementCount);
        if (alreadyChoosen.indexOf("," + rand + ",") < 0) {
            alreadyChoosen += rand + ",";
            elements.eq(rand).show();
            ++i;
        }
    }
});