function newWindow(url, nameW, height, width, scrollbars) {
	
	xTop = screen.width/2 - (width/2);
	yTop = screen.height/2 - (height/2);
	var newWin = window.open(url, nameW, 'height='+height+',width='+width+',scrollbars=' + scrollbars + ',resizable=0,menubar=0,toolbar=0,status=0,location=0,directories=0,left=' + xTop + ',top=' + yTop + '');
	newWin.focus();

}