if (document.images) {

	img1on = new Image();
// active Images
	img1on.src = "../images/buttons/close_on.gif";


	img1off = new Image();
// inactive Images
	img1off.src = "../images/buttons/close_off.gif";
}
// Function to 'activate' images.

function imgOn(imgId) {
	if (document.images) {
		document[imgId].src = eval(imgId + "on.src");
	}
}

// Function to 'deactivate' images.

function imgOff(imgId) {
	if (document.images) {
		document[imgId].src = eval(imgId + "off.src");
	}
}