function okno(file,ww,wh) {

var v=parseInt(navigator.appVersion);

isNetscape=navigator.appName.indexOf('Netscape')>=0;

var sw  = screen.width;

var sh  = screen.height;

var wbx = Math.round((sw-ww)*0.90);

var wby = Math.round((sh-wh)/10);

params='scrollbars=1,width='+ww+',height='+wh+',offscreenBuffering=1,alwaysRaised=1,resizable=1';

zoom=window.open(file,'zoom',params);

};