if (document.images) {			  // Active Images
			
			img1on = new Image(); 
			img1on.src = "images/more_on.jpg";
			img2on = new Image(); 
			img2on.src = "images/more_on.jpg";
			img3on = new Image(); 
			img3on.src = "images/more_on.jpg";
	
			img1off = new Image(); 
			img1off.src = "images/more_off.jpg";
			img2off = new Image(); 
			img2off.src = "images/more_off.jpg";
			img3off = new Image(); 
			img3off.src = "images/more_off.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");
		}
}