function format(f, champ) {
  var str = document.selection.createRange().text;
  that = document.entryform [champ];
  that.focus();
  var sel = document.selection.createRange();
  sel.text = "<" + f + ">" + str + "</" + f + ">";
  return;
}

function lien(champ) {
  var str = document.selection.createRange().text;
  that = document.entryform [champ];
  that.focus();
  var lien = prompt("URL:","http://");
  if (lien != null) {
    var sel = document.selection.createRange();
	sel.text = "<a href=\"" + lien + "\" target=\"_blank\" class=\"petit\" title=\"\">" + str + "</a>";
  }
  return;
}

function center(champ) {
  var str = document.selection.createRange().text;
  that = document.entryform [champ];
  that.focus();
  var sel = document.selection.createRange();
  sel.text = "<div align=\"center\">" + str + "</div>";
  return;
}