<!--       
        if (document.images) {
	        img0on = new Image();          
            img0on.src = "images/btn_0_on.gif";
            img1on = new Image();          
            img1on.src = "images/btn_1_on.gif";       // Active Images
            img2on = new Image(); 
            img2on.src = "images/btn_2_on.gif";
            img3on = new Image(); 
            img3on.src = "images/btn_3_on.gif";   			
			img4on = new Image();          
            img4on.src = "images/btn_4_on.gif";       
            img5on = new Image(); 
            img5on.src = "images/btn_5_on.gif";
            img6on = new Image(); 
            img6on.src = "images/btn_6_on.gif"; 
			img7on = new Image(); 
            img7on.src = "images/btn_7_on.gif"; 

		    img0off = new Image();          
            img0off.src = "images/btn_0_off.gif";       // Inactive Images
            img1off = new Image();          
            img1off.src = "images/btn_1_off.gif";       // Inactive Images
            img2off = new Image(); 
            img2off.src = "images/btn_2_off.gif";
            img3off = new Image(); 
            img3off.src = "images/btn_3_off.gif";   			
			img4off = new Image();          
            img4off.src = "images/btn_4_off.gif";       
            img5off = new Image(); 
            img5off.src = "images/btn_5_off.gif";
            img6off = new Image(); 
            img6off.src = "images/btn_6_off.gif";   
			img7off = new Image(); 
            img7off.src = "images/btn_7_off.gif";           
        }
// Function to 'activate' images.
function imgOn(imgName) {
        if (document.images) {
            document.images[imgName].src = eval(imgName + "on.src"); 
        }
}
// Function to 'deactivate' images.
function imgOff(imgName) {
        if (document.images) {
            document.images[imgName].src = eval(imgName + "off.src");
        }
}
// -->