function pstart()
{
	phide();
	document.getElementById('zpmenu'+pnum1).style.display = "block";
	document.getElementById('zpmenu0'+pnum1).style.display = "none";
}

function phide()
{
	for (i=1; i<=pnum; i++)
	{
	document.getElementById('zpmenu'+i).style.display = "none";
	document.getElementById('zpmenu0'+i).style.display = "block";
	}
}

function pmenufunc(j)
{
	if(document.getElementById('zpmenu'+j).style.display == "none")
	{
		phide();
		document.getElementById('zpmenu'+j).style.display = "block";
		document.getElementById('zpmenu0'+j).style.display = "none";
	}
	else
	{
		phide();
	}
}