var win = null;
function popup(mypage,myname,w,h) 
{
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	
	settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',location=no,menubar=no';
	win = window.open(mypage,myname,settings);
	win.window.focus();
}

wmtt = null;
document.onmousemove = updateWMTT;

function updateWMTT(e) 
{
	if (wmtt != null) 
	{
		x = (document.all) ? window.event.x + wmtt.offsetParent.scrollLeft : e.pageX;
		y = (document.all) ? window.event.y + wmtt.offsetParent.scrollTop  : e.pageY;
		wmtt.style.left = (x + 20) + "px";
		wmtt.style.top   = (y + 20) + "px";
	}
}

function showWMTT(id) 
{
	wmtt = document.getElementById(id);
	wmtt.style.display = "block";
}

function hideWMTT() 
{
	wmtt.style.display = "none";
}