// 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";

// Rollover code 
    if (br== "n3") { 
    img1on = new Image();         
    img1on.src = "images/nav01_on.gif";
	img2on = new Image();         
    img2on.src = "images/nav02_on.gif";
	img3on = new Image();         
    img3on.src = "images/nav03_on.gif";
	img4on = new Image();         
    img4on.src = "images/nav04_on.gif";
	img5on = new Image();         
    img5on.src = "images/nav05_on.gif";
	img6on = new Image();         
    img6on.src = "images/nav06_on.gif";
	img7on = new Image();         
    img7on.src = "images/nav07_on.gif";
	img8on = new Image();         
    img8on.src = "images/nav08_on.gif";
	img9on = new Image();         
    img9on.src = "images/pbi_on.gif";
	img10on = new Image();         
    img10on.src = "images/taxinfo_on.gif";
	img11on = new Image();         
    img11on.src = "images/ftools_on.gif";


    img1off = new Image();          
    img1off.src = "images/nav01_off.gif"; 
	img2off = new Image();          
    img2off.src = "images/nav02_off.gif";
	img3off = new Image();          
    img3off.src = "images/nav03_off.gif";
	img4off = new Image();          
    img4off.src = "images/nav04_off.gif";
	img5off = new Image();          
    img5off.src = "images/nav05_off.gif";
	img6off = new Image();          
    img6off.src = "images/nav06_off.gif";
	img7off = new Image();          
    img7off.src = "images/nav07_off.gif";
	img8off = new Image();          
    img8off.src = "images/nav08_off.gif";
	img9off = new Image();          
    img9off.src = "images/pbi_off.gif";
	img10off = new Image();          
    img10off.src = "images/taxinfo_off.gif";
	img11off = new Image();          
    img11off.src = "images/ftools_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");
    }
}