function launch(url, title, width, height, scrollbars, resizable, toolbar, status, location, menubar, directories){
	if(!scrollbars){scrollbars=0}
	if(!resizable){resizable=0}
	if(!toolbar){toolbar=0}
	if(!status){status=0}
	if(!location){location=0}
	if(!menubar){menubar=0}
	if(!directories){directories=0}
	var w = screen.width;
	var h = screen.height;
	var l = (w-width)/2;
	var t = (h-height)/2;
	var settings = 'location='+location+',toolbar='+toolbar+',directories='+directories+',status='+status+',menubar='+menubar+',scrollbars='+scrollbars+',resizable='+resizable;
	var position =  'top=' + t + ',screenY=' + t + ',left=' + l + ',screenX=' + l;
	var size = 'width=' + width + ',innerWidth=' + width +', height=' + height + ',innerHeight=' + height;
	var settings = settings + ',' + position + ',' + size
	window.open(url, title, settings);
}