var timeout         = 500;
var closetimer		= 0;
var ddmenuitem      = 0;

function mopen(id)
{	
	mcancelclosetime();

	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';

}
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}

function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

document.onclick = mclose; 

function openNewHorizontalWindow(website,name)
{
  newWindow = window.open(website,name, "toolbar=yes,location=no,scrollbars=no,width=820,height=620");
  newWindow.focus();
}
function openNewVerticalWindow(website,name)
{
  newWindow = window.open(website,name, "toolbar=no, location=no, scrollbars=no, width=620, height=820");
  newWindow.focus();
}

function microscope(web)
{
  address = "microscope/microscope.php?web=" + web;
  newWindow = window.open(address,"zoomify", "resize=no, toolbar=no, location=no, scrollbars=no, width=600, height=644");
  newWindow.focus();

}