function newImage(arg) {
if (document.images) {
rslt = new Image();
rslt.src = arg;
return rslt;
}
}

function changeImages() {
if (document.images && (preloadFlag == true)) {
for (var i=0; i<changeImages.arguments.length; i+=2) {
document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
}
}
}

var preloadFlag = false;
function preloadImages() {
if (document.images) {

headertitleover = newImage("/images/headertitleover.gif");
nnewsover = newImage("/images/nnewsover.gif");
npartnersover = newImage("/images/npartnersover.gif");
nhistoryover = newImage("/images/nhistoryover.gif");
nnatureover = newImage("/images/nnatureover.gif");
nvisitorsover = newImage("/images/nvisitorsover.gif");
nmapover = newImage("/images/nmapover.gif");
nbookstoreover = newImage("/images/nbookstoreover.gif");
ncontactover = newImage("/images/ncontactover.gif");
nlogocrover = newImage("/images/nlogocrover.gif");
nlogodoiover = newImage("/images/nlogodoiover.gif");
nlogoblmover = newImage("/images/nlogoblmover.gif");
blinkover = newImage("/images/blinkover.gif");
bcloseover = newImage("/images/bcloseover.gif");

nlogocplnmover = newImage("/images/nlogocplnmover.gif");
nlogomofnmover = newImage("/images/nlogomofnmover.gif");

preloadFlag = true;
}
}