// -*- c -*-
// Un bogue de IE..
function hasClass(obj) {
  var result = false;
  if (obj.getAttributeNode("class") != null) {
    result = obj.getAttributeNode("class").value;
  }
  return result;
}

function rayures(id) {
  var even = false;
  // choix alternatif : '#fff', '#edf3fe';
  // var evenColor = arguments[1] ? arguments[1] : "#fff";
  // var oddColor = arguments[2] ? arguments[2] : "#eee";
  var evenColor = "#fff";
  var oddColor = "#eee";
  var table = document.getElementById(id);
  if (! table) { return; }
  var tbodies = table.getElementsByTagName("tbody");
  for (var h = 0; h < tbodies.length; h++) {
    var trs = tbodies[h].getElementsByTagName("tr");
    for (var i = 0; i < trs.length; i++) {
      if (!hasClass(trs[i]) && ! trs[i].style.backgroundColor) {
	var tds = trs[i].getElementsByTagName("td");
	for (var j = 0; j < tds.length; j++) {
	  var mytd = tds[j];
	  if (! hasClass(mytd) && ! mytd.style.backgroundColor) {
	    mytd.style.backgroundColor = even ? evenColor : oddColor;
	  }
	}
      }
      even =  ! even;
    }
  }
}