function newPopup(url) {

	LeftPosition = (screen.width) ? (screen.width-800)/2 : 0;
	//TopPosition = (screen.height) ? (screen.height-600)/2 : 0;
	TopPosition = 0;
	popupWindow = window.open(
		url,'Galeria','height=600,width=800,left='+LeftPosition+',top='+TopPosition+',resizable=no,scrollbars=no,toolbar=no,menubar=no,location=no,directories=no,status=yes')
}