function highlight() {
	this.style.backgroundColor = "#f0f0f0";
}

function darklight() {
	this.style.backgroundColor = "#ffffff";
}

function init() {
	var reservation = document.getElementById('reservation');
	var rows = reservation.getElementsByTagName('tr');
	
	for(var i = 0; i < rows.length; i++)
	{
		if(rows[i].className == 'input_row')
		{
			if(rows[i].addEventListener)
			{
				rows[i].addEventListener("mouseover", highlight, false);
				rows[i].addEventListener("mouseout", darklight, false);
			}
			
			rows[i].onmouseover = highlight;
			rows[i].onmouseout = darklight;
		}
	}
}