function editor_marks() {
	spans = document.getElementsByTagName("span")
	for (i=0; i<spans.length; i++) {
		switch (spans[i].className) { 
			case "editToLowercase" : 
				spans[i].title = "Make this letter lowercase. (\'" + spans[i].innerText.toLowerCase() + "\')";
				break;
			case "editInsertParagraph" : 
				spans[i].title = "Start a new paragraph here.";
				break;
			case "editToBold" : 
				spans[i].title = "Make this text BOLD.";
				break;
			case "editInsertChar" : 
				spans[i].title = "Insert this character (\'" + spans[i].innerText + "\') here.";
				break;
			case "editToUppercase" : 
				spans[i].title = "Make this letter uppercase. (\'" + spans[i].innerText.toUpperCase() + "\')";
				break;
			case "editDeleteChar" : 
				spans[i].title = "Delete this character. (\'" + spans[i].innerText + "\')";
				break;	
			case "editComment" : 
				strComment = spans[i].title;
				spans[i].title = "The Editor's comment is to the right.";
				im = document.createElement("img");
				im.src = "../imagenes/outlinePixel.gif";
				im.width="760";
				im.height="1";
				im.style.position = "absolute";
				ne = spans[i].nextSibling;
				spans[i].parentNode.insertBefore(im, ne);
				
				im2 = document.createElement("span");
				im2.className = "editMarginNote";
				//im2.title = strComment;
				im2.innerText = strComment;
				spans[i].parentNode.insertBefore(im2, ne);
				break;
			case "editMarginNote" : 
				spans[i].innerHTML = "<B style=\"width:100%; border-bottom:1px solid red; display:block; background-color:red;\">EDITOR\'S NOTE:</B>" + spans[i].innerHTML;
				break;
			case "editInsertParagraph" :
				spans[i].innerHTML = "&para;";
				break;
		};  // switch (className)
	};  // for i
};  // editor_marks()