https://bayerwaldhof.de/files/bwh/src/js/parallax-background.min.js

1/**
2 * Parallax Background version 1.0
3 * https://github.com/erensuleymanoglu/parallax-background
4 * by Eren Süleymanoğlu
5 */
6!function(a){"use strict";function b(){return!(!/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(navigator.userAgent)&&!/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(navigator.userAgent.

6substr(0,4)))}!function(){for(var a=0,b=["ms","moz","webkit","o"],c=0;c<b.length&&!window.requestAnimationFrame;++c)window.requestAnimationFrame=window[b[c]+"RequestAnimationFrame"],window.cancelAnimationFrame=window[b[c]+"CancelAnimationFrame"]||window[b[c]+"CancelRequestAnimationFrame"];window.requestAnimationFrame||(window.requestAnimationFrame=function(b){var c=(new Date).getTime(),d=Math.max(0,16-(c-a)),e=window.setTimeout(function(){b(c+d)},d);return a=c+d,e}),window.cancelAnimationFrame||(window.cancelAnimationFrame=function(a){clearTimeout(a)})}(),a.fn.parallaxBackground=function(c){return this.each(function(){function w(a){return p=a.outerWidth(),k=a.outerHeight(),i=b()?2:1,"left"!==v.parallaxDirection&&"right"!==v.parallaxDirection||(p+=p*Math.abs(parseFloat(v.parallaxSpeed))*i),"up"!==v.parallaxDirection&&"down"!==v.parallaxDirection||(k+=k*Math.abs(parseFloat(v.parallaxSpeed))*i),[p,k]}function x(a,b){switch(j=0===a.offset().top?5:10,l=a.css("padding-left").replace("px",""),v.parallaxDirection){case"up":q=-l,r=-e.scrollTop()/j,s=0;break;case"down":q=-l,r=e.scrollTop()/j+(a.outerHeight()-b[1]),s=0;break;case"left":q=e.scrollTop()/j+(a.outerWidth()-b[0]),r=0,s=0;break;case"right":q=-e.scrollTop()/j,r=0,s=0}return[q,r,s]}var f,g,h,i,j,k,l,m,n,o,p,d=a(this),e=a(window),q=0,r=0,s=0,t={parallaxBgImage:"",parallaxBgPosition:"center center",parallaxBgRepeat:"no-repeat",parallaxBgSize:"cover",parallaxSpeed:.5,parallaxDirection:"up"},u=d.data(),v=a.extend({},t,c,u);v.parallaxSpeed>1?v.parallaxSpeed=1:v.parallaxSpeed<0&&(v.parallaxSpeed=0),d.find(".parallax-inner").length<1&&d.prepend('<div class="parallax-inner"></div>'),f=d.find(".parallax-inner"),g=w(d),h=x(d,g),d.css({position:"relative",background:"transparent",overflow:"hidden","z-index":"1"}),f.css({position:"absolute","background-image":"url("+v.parallaxBgImage+")","background-position":v.parallaxBgPosition,"background-repeat":v.parallaxBgRepeat,"background-size":v.parallaxBgSize,width:g[0],height:g[1],transform:"translate3d("+h[0]+"px, "+h[1]+"px, "+h[2]+"px)","z-index":"-1"}),e.resize(function(){g=w(d),h=x(d,g),f.css({width:g[0],height:g[1],transform:"translate3d("+h[0]+"px, "+h[1]+"px, "+h[2]+"px)"})}),"left"!==v.parallaxDirection&&"right"!==v.parallaxDirection||(m=0,n=h[0]),"up"!==v.parallaxDirection&&"down"!==v.parallaxDirection||(m=0,n=h[1]);var y=e.scrollTop();e.on("scroll",function(a){var b=e.scrollTop()-y;y=e.scrollTop(),m=b*(parseFloat(v.parallaxSpeed)/5),"up"===v.parallaxDirection&&(n+=-m,o="translate3d("+h[0]+"px, "+n+"px, "+h[2]+"px)"),"down"===v.parallaxDirection&&(n+=m,o="translate3d("+h[0]+"px, "+n+"px, "+h[2]+"px)"),"left"===v.parallaxDirection&&(n+=m,o="translate3d("+n+"px, "+h[1]+"px, "+h[2]+"px)"),"right"===v.parallaxDirection&&(n+=-m,o="translate3d("+n+"px, "+h[1]+"px, "+h[2]+"px)"),f.css({width:g[0],height:g[1],transform:o})})})}}(jQuery);