if (document.images) {            // Active Images

	img1on = new Image();      
    img1on.src = "res/products_on.jpg";
	img2on = new Image();      
    img2on.src = "res/services_on.jpg";
	img3on = new Image();      
    img3on.src = "res/aboutus_on.jpg";
	img4on = new Image();      
    img4on.src = "res/request_quote_on.jpg";
	img5on = new Image();      
    img5on.src = "res/contact_us_on.jpg";
	
    img1off = new Image();      
    img1off.src = "res/products.jpg";
	img2off = new Image();      
    img2off.src = "res/services.jpg";
	img3off = new Image();      
    img3off.src = "res/aboutus.jpg";
	img4off = new Image();      
    img4off.src = "res/request_quote.jpg";
	img5off = new Image();      
    img5off.src = "res/contact_us.jpg";
	

	
}



// 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 for image swap.
function imgSwapX(strTarget, imgName) {
	document[strTarget].src = imgName;
}