lifeinafolder

var img = new Image();

img.onload = function(){
  //do something when the image loads
  // for instance, inject in DOM.
  var imgDom = document.createElement('IMG');
  imgDom.setAttribute('src','YOUR URL HERE');
  //some dom element reference - element
  element.appendChild(imgDom);
}

lifeinafolder

var img = document.createElement('IMG');
img.setAttribute('src','YOUR URL HERE');
//some ref to DOM element - element
element.appendChild(img);