if(window.event + "" == "undefined") event = null;
 function HM_f_PopUp() {return false};
 function HM_f_PopDown() {return false};
 popUp   = HM_f_PopUp;
 popDown = HM_f_PopDown;

// Detect if browser is Netscape 3 + or IE 4 +.
bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
if ((bName == "Netscape" && bVer >= 3) || (bName == "Microsoft Internet Explorer" && bVer >= 4)) br = "n3";
else br = "n2";

// Create image objects, preload all active and inactive images.
if (br== "n3") {
	img1on=new Image();	img1on.src="home_on.gif";
	img2on=new Image();	img2on.src="about_on.gif";
	img3on=new Image();	img3on.src="services_on.gif";
	img4on=new Image();	img4on.src="customers_on.gif";
	img5on=new Image();	img5on.src="helpdesk_on.gif";
	img6on=new Image();	img6on.src="contact_on.gif";

	img1off=new Image();  img1off.src="home_off.gif";
	img2off=new Image();  img2off.src="about_off.gif";
	img3off=new Image();  img3off.src="services_off.gif";
	img4off=new Image();  img4off.src="customers_off.gif";
	img5off=new Image();  img5off.src="helpdesk_off.gif";
	img6off=new Image();  img6off.src="contact_off.gif";

}

// Function to "activate" images.
function imgAct(imgName) {
    if (br == "n3") {
    document[imgName].src=eval(imgName+"on.src");
    }
}

// Function to "deactivate" images.
function imgInact(imgName) {
    if (br == "n3") {
    document[imgName].src=eval(imgName+"off.src");
    }
}