trackerBookmarklet.js

var body = document.getElementsByTagName("body")[0];

var trackerEl = document.createElement("div");
trackerEl.style.positioning = "absolute";
trackerEl.style.top = "0";
trackerEl.style.left = "0";
trackerEl.style.width = "100%";
trackerEl.style.zIndex = "10000";
body.appendChild(trackerEl);

var imageTags = document.getElementsByTagName("img");
for (var i=0;i < imageTags.length;i++) {
    var imageTag = imageTags[i];
	if (imageTag.clientWidth == imageTag.clientHeight && imageTag.clientWidth <= 1) {
		imageTag.style.border = "1px solid black";
		imageTag.style.positioning = "relative";
		imageTag.style.float = "left";
		imageTag.height = 100;
		imageTag.width = 100;
		imageTag.style.display = "block";
		imageTag.style.backgroundColor = "red";
		console.log(imageTag.src);
		if (imageTag.parentNode) {
  			imageTag.parentNode.removeChild(imageTag);
		}
		trackerEl.appendChild(imageTag);
	}
}