<!--
var iName=""; var nav=navigator.appName.indexOf("Netscape"); var vers=parseInt(navigator.appVersion);
  if ( (nav != -1 && vers >= 3) || (vers == 4) ) {
default1 = new Image(); default1.src = "images/nav_about.gif";
changed1 = new Image(); changed1.src = "images/nav_aboutb.gif";
default2 = new Image(); default2.src = "images/nav_ehibitors.gif";
changed2 = new Image(); changed2.src = "images/nav_ehibitorsb.gif";
default3 = new Image(); default3.src = "images/nav_map.gif";
changed3 = new Image(); changed3.src = "images/nav_mapb.gif";
default4 = new Image(); default4.src = "images/nav_where.gif";
changed4 = new Image(); changed4.src = "images/nav_whereb.gif";
default5 = new Image(); default5.src = "images/nav_apps.gif";
changed5 = new Image(); changed5.src = "images/nav_appsb.gif";

  }
  function Ichange(p) {
    if ( (nav != -1 && vers >= 3) || (vers == 4) ) {
    var pSrc=eval(p+ ".src");
		document[iName].src = pSrc;
    }
  }
// -->