window.onError = null;

function layerobject (objname)
{
if (ie5up || nn6 || mz || op5)
	{
	this.obj = document.getElementById(objname);
	this.style = document.getElementById(objname).style;
	}
if (ie4 || iemac == 45)
	{
	this.obj = document.all[objname];
	this.style = document.all[objname].style;
	}
if (nn4)
	{
	this.obj = document.layers[objname];
	this.style = document.layers[objname];
	}
}

function hidewin(id)
	{
	popup = new layerobject(id);
	popup.style.visibility = 'hidden';
	}

function hideall()  // must be re-written
	{
	for (i=1; i<poptext.length; i++) hidewin(i);
	}

function showwin(id)
	{
	// hideall();
	popup = new layerobject(id);
	popup.style.visibility = "visible";
	}