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")},d=e.requestAnimationFrame||e.webkitRequestAnimationFrame||e.mozRequestAnimationFrame||e.oRequestAnimationFrame||e.msRequestAnimationFrame||function(t){setTimeout(t,1e3/60)};o.prototype={init:function(){this.options.name=n+"_"+Math.floor(1e9*Math.random()),this._defineElements(),this._defineGetters(),this._defineSetters(),this._handleWindowLoadAndResize(),this._detectViewport(),this.refresh({firstLoad:!0}),"scroll"===this.options.scrollProperty?this._handleScrollEvent():this._startAnimationLoop()},_defineElements:function(){this.element===i.body&&(this.element=e),this.$scrollElement=t(this.element),this.$element=this.element===e?t("body"):this.$scrollElement,this.$viewportElement=void 0!==this.options.viewportElement?t(this.options.viewportElement):this.$scrollElement[0]===e||"scroll"===this.options.scrollProperty?this.$scrollElement:this.$scrollElement.parent()},_defineGetters:function(){var t=this,e=a[t.options.scrollProperty];this._getScrollLeft=function(){return 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s=this,o=s._getScrollLeft(),n=s._getScrollTop();i&&i.firstLoad||this._reset(),this._setScrollLeft(0),this._setScrollTop(0),this._setOffsets(),this._findParticles(),this._findBackgrounds(),i&&i.firstLoad&&/WebKit/.test(navigator.userAgent)&&t(e).load(function(){var t=s._getScrollLeft(),e=s._getScrollTop();s._setScrollLeft(t+1),s._setScrollTop(e+1),s._setScrollLeft(t),s._setScrollTop(e)}),this._setScrollLeft(o),this._setScrollTop(n)},_detectViewport:function(){var t=this.$viewportElement.offset(),e=null!==t&&void 0!==t;this.viewportWidth=this.$viewportElement.width(),this.viewportHeight=this.$viewportElement.height(),this.viewportOffsetTop=e?t.top:0,this.viewportOffsetLeft=e?t.left:0},_findParticles:function(){var e=this;this._getScrollLeft(),this._getScrollTop();if(void 0!==this.particles)for(var i=this.particles.length-1;i>=0;i--)this.particles[i].$element.data("stellar-elementIsActive",void 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t,e,i,s,o;for(o=this.particles.length-1;o>=0;o--)e=(t=this.particles[o]).$element.data("stellar-startingLeft"),i=t.$element.data("stellar-startingTop"),this._setPosition(t.$element,e,e,i,i),this.options.showElement(t.$element),t.$element.data("stellar-startingLeft",null).data("stellar-elementIsActive",null).data("stellar-backgroundIsActive",null);for(o=this.backgrounds.length-1;o>=0;o--)(s=this.backgrounds[o]).$element.data("stellar-backgroundStartingLeft",null).data("stellar-backgroundStartingTop",null),h(s.$element,s.startingValueLeft,s.startingValueTop)},destroy:function(){this._reset(),this.$scrollElement.unbind("resize."+this.name).unbind("scroll."+this.name),this._animationLoop=t.noop,t(e).unbind("load."+this.name).unbind("resize."+this.name)},_setOffsets:function(){var i=this,s=t(e);s.unbind("resize.horizontal-"+this.name).unbind("resize.vertical-"+this.name),"function"==typeof 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t=this,e=!1,i=function(){t._repositionElements(),e=!1},s=function(){e||(d(i),e=!0)};this.$scrollElement.bind("scroll."+this.name,s),s()},_startAnimationLoop:function(){var t=this;this._animationLoop=function(){d(t._animationLoop),t._repositionElements()},this._animationLoop()}},t.fn[n]=function(e){var i=arguments;return void 0===e||"object"==typeof e?this.each(function(){t.data(this,"plugin_"+n)||t.data(this,"plugin_"+n,new o(this,e))}):"string"==typeof e&&"_"!==e[0]&&"init"!==e?this.each(function(){var s=t.data(this,"plugin_"+n);s instanceof o&&"function"==typeof s[e]&&s[e].apply(s,Array.prototype.slice.call(i,1)),"destroy"===e&&t.data(this,"plugin_"+n,null)}):void 0},t[n]=function(i){var s=t(e);return s.stellar.apply(s,Array.prototype.slice.call(arguments,0))},t[n].scrollProperty=a,t[n].positionProperty=l,e.Stellar=o}(jQuery,this,document);