function openMenu(elmnt)
{
	closeMenu()
	document.all(elmnt).style.height = "310"
	document.all(elmnt+"Table").style.display= "block"
}

function closeMenu()
{
	var menuNames = new Array(5); 
	
	menuNames[1] = "introduction"
	menuNames[2] = "service"
	menuNames[3] = "products"
	menuNames[4] = "experience"
	menuNames[0] = "family"

	for (i=0;i<=4;i++)
	{
		document.all(menuNames[i]+"Table").style.display="none"
		document.all(menuNames[i]).style.height="50"
	}
}

function handon(elmnt)
{
	document.all(elmnt).style.cursor="hand";
}

function handoff(elmnt)
{
	document.all(elmnt).style.cursor="default";
}

function showmenu(elmnt)
{
	document.all(elmnt).style.display="block"
}

function hidemenu(elmnt)
{
		document.all(elmnt).style.display="none"
}