function link(file,ww,wh,sc) {
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);
};