sellib.js

(function (){
    "use strict";
    window.sel=window.sel||{};
    /* Start Ajax */
function get(url) { var xhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (this.readyState == 4 && this.status == 200) { return this.responseText; } };xhttp.open("GET", url, true);xhttp.send();}function post(url, params) { var xhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (this.readyState == 4 && this.status == 200) { return this.responseText; } };xhttp.open("POST", url, true);xhttp.send(params);} window.sel.ajax = {get:get,post:post};
   /* End Ajax */
   /* Start HTML */
   function query(q){return document.querySelector(q);} window.sel.html = {query:query}; window.sel.q = query;
})();