function popup(url, top, left, width, height, scroll, resize)
{
	settings="toolbar=no,location=no,directories=no,status=no,menubar=no,"+
			"top="+top+",left="+left+",width="+width+",height="+height;
	if (scroll)
		settings = settings + ",scrollbars=yes";
	else
		settings = settings + ",scrollbars=no";
	if (resize)
		settings = settings + ",resizable=yes";
	else
		settings = settings + ",resizable=no";

	MyNewWindow=window.open(url,"mywin",settings);
}

function showhide(spanid) 
{
	if (spanid.style.display=='block')
		spanid.style.display='none';
	else
		spanid.style.display='block';
}