function openWindow(pageURL, windowWidth, windowHeight, showScrollbars, windowName)
{
		var windowPosX;
		var windowPosY;
		var newWindow;

		windowPosX=(screen.width-windowWidth)/2;
		windowPosY=(screen.height-windowHeight)/4;
		if (windowPosX<0) windowPosX=0;
		if (windowPosY<0) windowPosY=0;
		newWindow=window.open(pageURL, windowName, "toolbar=no,location=no,left=" + windowPosX + ",top=" + windowPosY + ",directories=no,status=no,menubar=no,scrollbars="+showScrollbars+",resizable=no,width=" + windowWidth + ",height=" + windowHeight);
		newWindow.focus();
	}