function TableOddEvenRows() {
	var aTableaux = document.getElementsByTagName("tbody");
	
	for ( var cTableaux = 0; cTableaux < aTableaux.length; cTableaux++ ) {
		var eTableau = aTableaux[cTableaux];
		var aRangees = eTableau.getElementsByTagName("tr");
		
		for ( var cRangees = 0; cRangees < aRangees.length; cRangees++ )
			aRangees[cRangees].className = cRangees % 2 == 0 ? "odd " + aRangees[cRangees].className : "even " + aRangees[cRangees].className;
	}
}

if ( window.addEventListener )
	window.addEventListener("load", TableOddEvenRows, false);
else if ( window.attachEvent )
	window.attachEvent("onload", TableOddEvenRows);