URL javascript functions

format-params-object-to-url.js

function formatParamsObjectToURL( params ){
  return "?" + Object
    .keys(params)
    .map(function(key){
      return key+"="+encodeURIComponent(params[key])
    })
    .join("&")
}

get-url-params.js

/**
 * Returns object of URL params
 */
function getQueryParams(qs) {
      qs = qs.split('+').join(' ');

      var params = {},
          tokens,
          re = /[?&]?([^=]+)=([^&]*)/g;

      while (tokens = re.exec(qs)) {
          params[decodeURIComponent(tokens[1])] = decodeURIComponent(tokens[2]);
      }

      return params;
  }