function openScreen(htmpage,winname,W,H,mb,scr,lb,rs) {

//scrollbars only:  'http://www.whatever.com','win1',500,400,0,1,0,0
//almost everything: 'http://www.whatever.com','win1',500,400,1,1,1,1
 
var yes = 1;
var no = 0;

var menubar = mb;
var scrollbars = scr;
var locationbar = lb;
var directories = no;
var resizable = rs;
var statusbar = no;
var toolbar = no;

windowprops = "width=" + W + ",height=" + H + ",top=0,left=0";

windowprops += (menubar ? ",menubars" : "") +
(scrollbars ? ",scrollbars" : "") +
(locationbar ? ",location" : "") +
(directories ? ",directories" : "") +
(resizable ? ",resizable" : "") +
(statusbar ? ",status" : "") +
(toolbar ? ",toolbar" : "");

window.open(htmpage,winname,windowprops);
 
}