function showPopupDiv(mouseX,mouseY)
{
	var div = document.getElementById('popupdiv');
	var scroll_top = document.body.scrollTop ? document.body.scrollTop : document.documentElement.scrollTop;
	div.style.top = (mouseY > div.clientHeight) ? (mouseY + scroll_top - div.clientHeight) + 'px' : (mouseY + scroll_top) + 'px';  
	div.style.left = (mouseX > div.clientWidth) ? (mouseX - div.clientWidth) + 'px' : mouseX + 'px';
	div.style.visibility = 'visible';
	div.style.display = 'block';
}

function hidePopupDiv()
{
	var div = document.getElementById('popupdiv');
	div.style.visibility = 'hidden';
	div.style.display = 'none';
}