// rollovers for nav
home_on = new Image;home_on.src = "images/nav_home_on.gif";
home_off = new Image;home_off.src = "images/nav_home_off.gif";
artwork_on = new Image;artwork_on.src = "images/nav_artwork_on.gif";
artwork_off = new Image;artwork_off.src = "images/nav_artwork_off.gif";
about_on = new Image;about_on.src = "images/nav_about_on.gif";
about_off = new Image;about_off.src = "images/nav_about_off.gif";
contact_on = new Image;contact_on.src = "images/nav_contact_on.gif";
contact_off = new Image;contact_off.src = "images/nav_contact_off.gif";
links_on = new Image;links_on.src = "images/nav_links_on.gif";
links_off = new Image;links_off.src = "images/nav_links_off.gif";

browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);

ns3up = (browserName == "Netscape" && browserVer >= 3);
ie4up = (browserName.indexOf("Microsoft") >= 0 && browserVer >= 4);

function doPic(imgName) {
if (ns3up || ie4up) {
imgOn = ("images/artwork/" + imgName);
document.mainpic.src = imgOn;
   }
}