function ShowMenu(custservid)
{
	var menu = 'menu' + custservid
	var image = 'image' + custservid

	for(i=1; i<200; i++)
	{
		if (document.getElementById('menu' + i))
		{
		document.getElementById('menu' + i).style.display = 'none';
		document.getElementById('image' + i).src = "/grafx/arrow-right.gif";
		}
	}

	if (document.getElementById(menu))
	{
	document.getElementById(menu).style.display = 'block';
	document.getElementById(image).src = "/grafx/arrow-down.gif";
	}
}