<!--
if (document.images) {

// rollover on
img1on = new Image();
img1on.src="graphics/but1r.gif";
img2on = new Image();
img2on.src="graphics/but2r.gif";
img3on = new Image();
img3on.src="graphics/but3r.gif";

// rollover off
img1off = new Image();
img1off.src="graphics/but1.gif";
img2off = new Image();
img2off.src="graphics/but2.gif";
img3off = new Image();
img3off.src="graphics/but3.gif";
}

// 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");
}
}
// -->