getUrlParams.js

function getUrlParams() {
  var query = location.search// from ? to #
  var params = {}
  if (query.length > 1) {
    var queryStr = query.substr(1)
    var entry = queryStr.split('&')
    for (var i = 0; i < entry.length; i++) {
      var kv = entry[i].split('=')
      var key = kv[0]
      var value = kv[1]// maybe undefined
      params[key] = value
    }
  }
  return params
}