var newWindow = null;

function openWindow(contentURL,windowName,windowWidth,windowHeight) {
	widthHeight = 'height=' + windowHeight + ',width=' + windowWidth + ' ,scrollbars';
	newWindow = window.open(contentURL,windowName,widthHeight);
	newWindow.moveTo(75,10);
	newWindow.focus();
}

function closeWindow() {
	if (newWindow !=null) {
		newWindow.close();
		newWindow = null;
	}
}

function toggleWindow(contentURL,windowName,windowWidth,windowHeight) {
	if (newWindow == null) {
		widthHeight = 'HEIGHT=' + windowHeight + ',WIDTH=' + windowWidth;
		newWindow = window.open(contentURL,windowName,widthHeight);
		newWindow.focus();
	}
	else {
		newWindow.close();
		newWindow = null;
	}
}