https://www.vfu.bg/includes/libs/jquery//jquery.rd-parallax.js

1;(function($){var RDParallax=function(element,options){this.options=options;this.settings={'imageClass':'parallax_image','patternClass':'parallax_pattern','contentClass':'parallax_cnt','wrapClass':'parallax'}
2this.$wrap=$(element);this.$image=$.noop();};RDParallax.prototype={init:function(){var parallax=this;parallax.isInit=true;parallax.createDOM();parallax.blur();parallax.createListeners();},createDOM:function(){var parallax=this;parallax.$wrap.addClass(parallax.settings.wrapClass).wrapInner($('<div/>',{'class':parallax.settings.contentClass})).prepend($('<div/>',{'class':(parallax.options.pattern?parallax.settings.patternClass:parallax.settings.imageClass)}).css({'background-image':'url('+ parallax.options.url+')','background-color':parallax.options.color}));parallax.$image=parallax.options.pattern?parallax.$wrap.find('.'+ parallax.settings.patternClass):parallax.$wrap.find('.'+ parallax.settings.imageClass);},createListeners:function(){this.createResizeListener();this.createScrollListener();},createScrollListener:function(){var parallax=this;if(parallax.isMobile()){if(!parallax.options.mobile){return;}}
3$(window).bind('touchstart',function(){parallax.isTouched=true;});$(window).bind('touchend',function(){if(parallax.timer){clearTimeout(parallax.timer);}
4parallax.timer=setTimeout(function(){parallax.isTouched=false;},1200);});$(window).bind('scroll',function(){parallax.move();});parallax.move();},createResizeListener:function(){var parallax=this;if(parallax.isMobile()){if(!parallax.options.mobile){return;}}
5if(!parallax.isMobile()){$(window).bind('resize',function(){parallax.resize();});}
6$(window).bind('orientationchange',function(){setTimeout(function(){parallax.resize();},300);});parallax.resize();},move:function(){var parallax=this;if(!parallax.isVisible()){return;}
7if(parallax.isMobile()){if(!parallax.options.mobile){return;}}
8var st=$(window).scrollTop(),off=parallax.$wrap.offset().top,wh=$(window).height(),h=parallax.$wrap.outerHeight(),ph=parallax.$image.height();var speed=parallax.options.speed;if(speed<0){speed=0;}
9if(speed>1){speed=1;}
10var step=(st-(off- wh))/ ((off + h) - (off - wh)) * speed;
11if(parallax.options.direction=='normal'){var pos=step*(h- ph);}else{var pos=(1- step)*(h- ph);}
12if(parallax.isIE()&&parallax.ieVersion()<=10){parallax.$image.css('top',''+ pos+'px');}
13else if(parallax.isMobile()&&parallax.options.mobile){if(parallax.isTouched||parallax.isInit){parallax.$image.stop().animate({pos:pos},{step:function(pos){$(this).css('transform','translate3d(0, '+ pos+'px, 0)');},duration:parallax.options.duration},parallax.options.easing);parallax.isInit=false;}}else{parallax.$image.css('transform','translate3d(0, '+ pos+'px, 0)');}
14if(parallax.isFirefox()&&window.devicePixelRatio<1){parallax.$image.css('background-color','#010101');setTimeout(function(){parallax.$image.css('background-color',parallax.options.color);},10);}},resize:function(){var parallax=this,h=Math.max($(window).height(),500);if(h<parallax.$wrap.outerHeight()){h=parallax.$wrap.outerHeight()+ $(window).height()*parallax.options.speed;}
15parallax.$image.height(h);setTimeout(function(){parallax.move();parallax.blur();},300);},blur:function(){var parallax=this;if(parallax.options.blur&&!parallax.isIE()&&!parallax.options.pattern){$('<img/>',{src:parallax.options.url}).load(function(){var dh=parallax.$image.height()/ this.height,
16dw=parallax.$image.width()/ this.width,
17blur=Math.floor(Math.max(dh,dw));if(blur>2){parallax.$image.css({'filter':'blur('+ blur+'px)','-webkit-filter':'blur('+ blur+'px)'});}else{parallax.$image.css({'filter':'blur('+ 0+'px)','-webkit-filter':'blur('+ 0+'px)'});}});}},isVisible:function(){var parallax=this,windowScroll=$(window).scrollTop(),windowHeight=$(window).height(),parallaxOffset=parallax.$wrap.offset().top,parallaxHeight=parallax.$wrap.outerHeight();return(parallaxOffset+ parallaxHeight>=windowScroll)&&(parallaxOffset<=windowScroll+ windowHeight)},isIE:function(){if(navigator.appVersion.indexOf("MSIE")!=-1){return true;}
18return false;},isMobile:function(){return/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent);},ieVersion:function(){return parseFloat(navigator.appVersion.split("MSIE")[1]);},isFirefox:function(){return typeof InstallTrigger!=='undefined';}};$.fn.rdparallax=function(option){var element=this.each(function(){var options=$.extend({}

18,$.fn.rdparallax.defaults,option);if(options.url){new RDParallax(this,options).init();}else{console.error('RD Parallax: data-url is not defined');}});return element;};$.fn.rdparallax.defaults={speed:0.4,direction:'normal',blur:false,mobile:false,url:false,pattern:false,duration:200,easing:'linear',color:'inherit'};window.RDParallax_autoinit=function(selector){$(selector).each(function(){var options=$.extend({},$.fn.rdparallax.defaults,{url:$(this).data('url'),speed:$(this).data('speed'),direction:$(this).data('direction'),blur:$(this).data('blur'),mobile:$(this).data('mobile'),pattern:$(this).data('pattern'),color:$(this).data('color')});if(options.url){new RDParallax(this,options).init();}else{console.error('RD Parallax: data-url is not defined');}});};})(jQuery);$(document).ready(function(){RDParallax_autoinit('.parallax');});