function MouseOver() {
	
	var zellen = document.getElementsByName('table_date_row');
	
	for (var i = 0; i < zellen.length; i++)
	{
		zellen[i].onmouseover = MouseOverTr;
		zellen[i].onmouseout = MouseOutTr;
	}
}

function MouseOverTr() {
	this.className = "table_date_row_over";
}

function MouseOutTr() {
	this.className = "table_date_row";
}