function prefetchImages() {
  i1 = new Image(); i1.src="http://www.troel.net/tmb/skel/prev2.gif";
  i2 = new Image(); i2.src="http://www.troel.net/tmb/skel/next2.gif";
  i3 = new Image(); i3.src="http://www.troel.net/tmb/skel/back2.gif";
  i4 = new Image(); i4.src="http://www.troel.net/tmb/skel/home2.gif";
  i5 = new Image(); i5.src="http://www.troel.net/tmb/skel/prnt2.gif";
  i6 = new Image(); i6.src="http://www.troel.net/tmb/skel/mail2.gif";
}
function mailWebmaster() {
  location.href = "mailto:tmb@troel.net";
}
function recommendSite() {
  location.href = "mailto:?subject=Tour du Mont-Blanc&body=Le site http://www.troel.net/tmb/ peut t'interesser.";
}
function recommendPage() {
  location.href = "mailto:?subject=Tour du Mont-Blanc&body=La page " + document.location.href + " peut t'interesser.";
}
function checkPage() {
  location.href = "http://validator.w3.org/check?uri=" + document.location.href;
}
function checkStyle() {
  location.href = "http://jigsaw.w3.org/css-validator/validator?uri=www.troel.net/tmb/skel/style.css";
}
function setClass(objet, myClass)
{ 
  objet.className = myClass;
}