if (document.images) {            // Active Images
            img1on = new Image();      
            img1on.src = "/fitforfun/img/schedule_on.jpg"; 
            img2on = new Image();      
            img2on.src = "/fitforfun/img/experts_on.jpg"; 
            img3on = new Image();      
            img3on.src = "/fitforfun/img/rates_on.jpg"; 
            img4on = new Image();      
            img4on.src = "/fitforfun/img/video_on.jpg"; 

            img1off = new Image();      
            img1off.src = "/fitforfun/img/schedule_off.jpg"; 
            img2off = new Image();      
            img2off.src = "/fitforfun/img/experts_off.jpg"; 
            img3off = new Image();      
            img3off.src = "/fitforfun/img/rates_off.jpg"; 
            img4off = new Image();      
            img4off.src = "/fitforfun/img/video_off.jpg"; 

        }


// Function to 'switch' images.
function changeImages() {
	if (document.images) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
			}
		}
	}