function Window(windowName,windowWidth,windowHeight,windowScrollbar,windowURL){	
	var windowTop = (screen.availHeight - windowHeight) / 2
	var windowLeft = (screen.availWidth - windowWidth) / 2	
	var win = window.open(windowURL, windowName, "width=" + windowWidth.toString() + ", height=" + windowHeight.toString() + ", top=" + windowTop.toString() + ", left=" + windowLeft.toString() + "scrollbars=" + windowScrollbar);
	win.focus();
}