if (document.images) {            // Active Images
	img1on = new Image();      
    img1on.src = "res/nav_served_on.jpg"; 
	img2on = new Image();      
    img2on.src = "res/nav_seamless_on.gif";
	img3on = new Image();      
    img3on.src = "res/nav_polishing_on.gif";
	img4on = new Image();      
    img4on.src = "res/nav_about_on.gif";
	img5on = new Image();      
    img5on.src = "res/nav_industries_on.gif";
	img6on = new Image();      
    img6on.src = "res/nav_contact_on.gif";
	
	
    img1off = new Image();      
    img1off.src = "res/nav_served.jpg";
	img2off = new Image();      
    img2off.src = "res/nav_seamless.gif";
	img3off = new Image();      
    img3off.src = "res/nav_polishing.gif";
	img4off = new Image();      
    img4off.src = "res/nav_about.gif";
	img5off = new Image();      
    img5off.src = "res/nav_industries.gif";
	img6off = new Image();      
    img6off.src = "res/nav_contact.gif";
}



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

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

// Function to open new window
function openBrWindow(theURL,winName,features) {
  window.open(theURL,winName,features);
}

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		nav_logo = newImage("res/nav_logo.jpg");
		
		preloadFlag = true;
	}
}

// -->