function OpenWindow( sUri, iWidth, iHeight)
{
	var sWindowName = 'win' + Math.floor( Math.random()*1000 )
	var iRealWidth = iWidth ? iWidth : 600
	var iRealHeight = iHeight ? iHeight : screen.height - 300

	var iLeft = Math.round( (screen.width-iRealWidth)/2 )
	var iTop =  Math.round( (screen.height-iRealHeight)/2 ) - 35

	var sWindowOptions = 'status=yes,menubar=no,toolbar=no'
	sWindowOptions += ',resizable=yes,scrollbars=yes,location=no'
	sWindowOptions += ',width='  + iRealWidth
	sWindowOptions += ',height=' + iRealHeight
	sWindowOptions += ',left='   + iLeft
	sWindowOptions += ',top='    + iTop

	var win = window.open( sUri, sWindowName, sWindowOptions )
	win.focus()

	return win
}


function CloseWindow()
{
	if( window.opener )
	{
		window.opener.top.location.href = window.opener.top.location.href + '?%20'
		window.opener.focus()
	}
	window.close()
	return false
}