nav1 = new Image();
nav1.src = "images/pageElements/nav/home_o.jpg";
nav2 = new Image();
nav2.src = "images/pageElements/nav/office_o.jpg";
nav3 = new Image();
nav3.src = "images/pageElements/nav/patient_o.jpg";
nav4 = new Image();
nav4.src = "images/pageElements/nav/treatment_o.jpg";
nav5 = new Image();
nav5.src = "images/pageElements/nav/forms_o.jpg";
nav5 = new Image();
nav5.src = "images/pageElements/nav/popcorn_o.jpg";