function setParam(n,t){var i=queryString.parse(document.location.search);i[n]=t;document.location.search=queryString.stringify(i)}var queryString={};queryString.parse=function(n){return typeof n!="string"?{}:(n=n.trim().replace(/^(\?|#)/,""),!n)?{}:n.trim().split("&").reduce(function(n,t){var u=t.replace(/\+/g," ").split("="),i=u[0],r=u[1];return i=decodeURIComponent(i),r=r===undefined?null:decodeURIComponent(r),n.hasOwnProperty(i)?Array.isArray(n[i])?n[i].push(r):n[i]=[n[i],r]:n[i]=r,n},{})};queryString.stringify=function(n){return n?Object.keys(n).map(function(t){var i=n[t];return Array.isArray(i)?i.map(function(n){return encodeURIComponent(t)+"="+encodeURIComponent(n)}).join("&"):encodeURIComponent(t)+"="+encodeURIComponent(i)}).join("&"):""}