code: function validateSelector(selector, canBeFalse, name) {
  			if (((canBeFalse && selector === false) || selector instanceof Element || typeof selector === "string") && selector !== "") {
  				return true;
  			}
  			throw new Error("The " + name + " is not valid");
  		}
docs: Validate that a queryString is valid
  
  @param  {Element|string|bool} selector   The queryString to test
  @param  {bool}	canBeFalse	Whether false is an accepted and valid value
  @param  {string} name		Name of the tested selector
  @throws {Error}				If the selector is not valid
  @return {bool}				True if the selector is a valid queryString