function styleWriter() {
   
    if ((navigator.appName).indexOf("Microsoft")!=-1) 
    {
    document.write('<link href="styles/ie.css" media="screen" rel="Stylesheet" type="text/css" />')
    }
  }

run: styleWriter()

image1 = new Image();
image1.src = "../images/nav/about_on.jpg";

image2 = new Image();
image2.src = ".../images/nav/about_over.jpg";

image3 = new Image();
image3.src = "../images/nav/clients_on.jpg";

image4 = new Image();
image4.src = "../images/nav/clients_over.jpg";

image5 = new Image();
image5.src = "../images/nav/contact_on.jpg";

image6 = new Image();
image6.src = "../images/nav/contact_over.jpg";

image7 = new Image();
image7.src = "../images/nav/events_on.jpg";

image8 = new Image();
image8.src = "../images/nav/events_over.jpg";

image9 = new Image();
image9.src = "../images/nav/home_on.jpg";

image10 = new Image();
image10.src = "../images/nav/home_over.jpg";

image11 = new Image();
image11.src = "../images/nav/testimonials_on.jpg";

image12 = new Image();
image12.src = "../images/nav/testimonials_over.jpg";

image13 = new Image();
image13.src = "../images/nav/about_on.jpg";

image14 = new Image();
image14.src = "../images/nav/about_on.jpg";