Simplify he beast!

ws/eclipse/Sda1PreExam/src/dom/table1/TablePresentation.java

@@ -43,10 +43,8 @@ public class TablePresentation {
 			final Element tr = new Element("tr");
 			if (setBackground) {
 				tr.setAttribute("style", "background-color: #FFFF88;");
-				setBackground = false;
-			} else {
-				setBackground = true;
-			}
+			} 
+			setBackground = !setBackground;
 			table.addContent(tr);
 			tr.addContent(new Element("td").addContent(person.getChild("name").getText()));
 			tr.addContent(new Element("td").addContent(person.getChild("birthday").getText()));