function $(id)
{
return document.getElementById(id);
}
function popup (file)
{
var dati = 'menubar=no,width=350,height=400,scrollbars=no,resizeable=no,'+center_window (350,400);
var wind = window.open (file, 'popup', dati);
wind.focus();
}
function center_window (w, h)
{
var left = Math.round (screen.availWidth / 2) - Math.round (w / 2);
var top = Math.round (screen.availHeight / 2) - Math.round (h / 2);
return 'left='+left+',top='+top;
}
function showpic (pic, ww, hh)
{
if(ww==''||hh=='') return;
var rww=ww;var rhh=hh;var scr='no';
var sww=screen.availWidth;var shh=screen.availHeight-30;
var cww=Math.round(sww/2)-Math.round(ww/2); var chh=Math.round(shh/2)-Math.round(hh/2);
if(ww>sww){cww=0;ww=sww;}if(hh>shh){chh=0;hh=shh;ww+=16;scr='yes';}if(ww>sww){ww -= 22;}
var wnd=window.open('','','menubar=no,width='+ww+',height='+hh+',scrollbars='+scr+',resizeable=no,left='+cww+',top='+chh);
wnd.document.open();
var doc = wnd.document;
doc.write('Preview');
if (pic.substr (pic.length-4,4) != '.swf') doc.write('
');
else doc.write('');
doc.write('');
wnd.document.close();
wnd.focus();
}
function go (f) { window.location = "#" + f; }
function on(nos) {if (document.images) document[nos].src = eval(nos + "on.src");}
function off(nos) {if (document.images) document[nos].src = eval(nos + "off.src");}