<!-- hide script from old browsers

//detect browser:
browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
if (browserName == "Netscape" && browserVer >= 3) browserVer = "1";
else if (browserName == "Microsoft Internet Explorer" && browserVer == 4) browserVer = "1";
else browserVer = "2";

//preload images:
if (browserVer == 1) {
a1 = new Image(210,41);
a1.src = "images/nav_home.jpg";
a2 = new Image(210,41);
a2.src = "images/nav_home_2.jpg";
b1 = new Image(210,31);
b1.src = "images/nav_products.jpg";
b2 = new Image(210,31);
b2.src = "images/nav_products_2.jpg";
c1 = new Image(210,31);
c1.src = "images/nav_services.jpg";
c2 = new Image(210,31);
c2.src = "images/nav_services_2.jpg";
d1 = new Image(210,32);
d1.src = "images/nav_indoor_air_quality.jpg";
d2 = new Image(210,32);
d2.src = "images/nav_indoor_air_quality_2.jpg";
e1 = new Image(210,31);
e1.src = "images/nav_energy_audit.jpg";
e2 = new Image(210,31);
e2.src = "images/nav_energy_audit_2.jpg";
f1 = new Image(210,31);
f1.src = "images/nav_comfort_club.jpg";
f2 = new Image(210,31);
f2.src = "images/nav_comfort_club_2.jpg";
g1 = new Image(210,32);
g1.src = "images/nav_testimonials.jpg";
g2 = new Image(210,32);
g2.src = "images/nav_testimonials_2.jpg";
h1 = new Image(210,33);
h1.src = "images/nav_contact_us.jpg";
h2 = new Image(210,33);
h2.src = "images/nav_contact_us_2.jpg";
i1 = new Image(210,38);
i1.src = "images/nav_make_a_service_call.jpg";
i2 = new Image(210,38);
i2.src = "images/nav_make_a_service_call_2.jpg";
}

//image swapping function:
function hiLite(imgDocID, imgObjName, comment) {
if (browserVer == 1) {
document.images[imgDocID].src = eval(imgObjName + ".src");
window.status = comment; return true;
}}
//end hiding -->

function popUp(URL) {
day = new Date();
id = day.getTime();
eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=475,height=400');");
}