!function(a){var b=function(a,b){return this.elements=(b||document).querySelectorAll(a),this.length=this.elements.length,this};b.prototype={ready:function(a){document.addEventListener("DOMContentLoaded",a)},each:function(a){for(var b=0;b<this.length;b++)a(this.elements[b],b,this.elements);return this},attr:function(a,b){if("string"==typeof a&&"string"==typeof b)for(var c=0;c<this.length;c++){var d="";"undefined"!==this.elements[c].getAttribute(a)&&(d=this.elements[c].getAttribute(a)),this.elements[c].setAttribute(a,d+" "+b)}},addClass:function(a){return this.each(function(b){b.classList.add(a)}),this},removeClass:function(a){return this.each(function(b){b.classList.remove(a)}),this},removeElements:function(){for(var a=0;a<this.length;a++)this.elements[a].parentElement.removeChild(this.elements[a])}},a.$kew=function(a,c){return new b(a,c)}}(window);