Передача this без id

by AntonKravchenko

HTML

<span>
  <img id="f2" src="https://clientbasepro.ru/Customization/images/phone.png" onclick="f1(this.id); return true;">
</span>

JavaScript

function f1(elementId) {
  if (element=document.getElementById(elementId)) element.style.display = 'none'; 
  return true;
}