function getParameter(t) {
  var e = window.location.search,
    i = new RegExp(t + "=([^&?]*)", "ig");
  return e.match(i) ? e.match(i)[0].substr(t.length + 1) : null
}

function getAllParameter() {
  var pairs = window.location.search.substring(1).split("&");
  var obj = {};
  for (let i in pairs ) {
    if ( pairs[i] === "" ) continue;
    let pair = pairs[i].split("=");
    obj[ decodeURIComponent( pair[0] ) ] = decodeURIComponent( pair[1] );
  }
  return obj
}

function isMobile() {
  return /(iPhone|iPad|iPod|iOS|Android)/i.test(navigator.userAgent);
}