function linkwindow( URLName, winWidth, winHeight ) {
	if (winWidth == null){winWidth = 500};
	if (winHeight == null){winHeight = 390};
	newWindow = window.open( URLName, 'newWin', 'scrollbars=auto,resizable=yes,toolbar=no,location=no,width=' + winWidth + ',height=' + winHeight +'' );
}