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img1.src = "http://www.hotelmccall.com/images/link1a.gif";
img2 = new Image();
img2.src = "http://www.hotelmccall.com/images/link2a.gif";
img3 = new Image();
img3.src = "http://www.hotelmccall.com/images/link3a.gif";
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function linkOn(num)
{
document.images['link' + (num)].src = "http://www.hotelmccall.com/images/link"+(num)+"a.gif"
}

function linkOff(num)
{
document.images['link' + (num)].src = "http://www.hotelmccall.com/images/link"+(num)+".gif"
}