function showWindow(popup,width,height) {
	var attributes = "top=0,left=0,right=0,bottom=0,channelmode=0,dependent=0,directories=0,fullscreen=0,location=0,menubar=0,resizable=0,scrollbars=1,status=0,toolbar=0,width=" +width+ ",height=" +height;
	var popUpWin = window.open(popup+'.php',"pic",attributes);
	popUpWin.moveTo( ((screen.width - popUpWin.outerWidth) / 2),((screen.height - popUpWin.outerHeight) / 2) );
	popUpWin.focus();
}