<!-- Swap images
function Permut (flag,img) {
   if (document.images) {
        if (document.images[img].permloaded) {
            if (flag==1) document.images[img].src = document.images[img].perm.src
            else document.images[img].src = document.images[img].perm.oldsrc
        }
   }
}
function preloadPermut (img,adresse) {
   if (document.images) {
        img.onload = null;
        img.perm = new Image ();
        img.perm.oldsrc = img.src;
        img.perm.src = adresse;
        img.permloaded = true;
   }
}
function changeImage(filename)
{
   document.getElementById('mainimage').src = filename;
}
function alphaOut(x)
{
	x.style.filter = 'alpha(opacity=100)';	
	x.style.opacity = 1;
		
}
function alphaOn(x)
{
	x.style.filter = 'alpha(opacity=50)';
	x.style.opacity = 0.5;	
}

// -->