Salve a tutti
Ho iniziato da poco a leggere javascript ... intanto sto scrivendo il mio sito...
Ho trovato sul web un codice js che mi permette di inserire un menù di navigazione simile alla dockbar di Mac, ma (capendone ancora poco ) non riesco a capire come regolarne la posizione in modo tale che mi risulti di un tot distaccata dal fondo e dal margine sinistro della pagina...
Il codice è questo:

codice:
var linkList=[
[ 'http://www.havingfun.altervista.org/' , 'http://www.havingfun.altervista.org/images/home.png' , '', 'Home' ],
[ 'http://www.havingfun.altervista.org/autoit/autoit.html' , 'http://www.havingfun.altervista.org/images/autoit.jpg' , '', 'AutoIt' ],
[ 'http://www.havingfun.altervista.org/quenya/quenya.html' , 'http://www.havingfun.altervista.org/images/quenya.jpg' , '', 'Linguaggio Elfico - Quenya (Tolkien)' ],
[ 'http://www.havingfun.altervista.org/hackesec/hackesec.html' , 'http://www.havingfun.altervista.org/images/hackesec.jpg' , '', 'Hacking/Sicurezza' ],
[ 'http://www.havingfun.altervista.org/music/music.html' , 'http://www.havingfun.altervista.org/images/music.jpg' , '', 'Musica' ],
[ 'http://www.havingfun.altervista.org/videos/videos.html' , 'http://www.havingfun.altervista.org/images/videos.jpg' , '', 'Video' ],
[ 'http://www.havingfun.altervista.org/games/games.html' , 'http://www.havingfun.altervista.org/images/games.jpg' , '', 'Giochi' ],
[ 'http://www.havingfun.altervista.org/info.html' , 'http://www.havingfun.altervista.org/images/derp.jpg' , '', 'About Me' ],
]


var startSize=40;  // THE STARTING WIDTH *AND* HEIGHT OF EACH IMAGE (THE IMAGES WILL BE SCALED).
//<!-- RAJ
var curSize=50;    // variable used in the first time zoom/shrink
// RAJ -->
var endSize=90;   // THE ENDING WIDTH *AND* HEIGHT OF EACH IMAGE (THE IMAGES WILL BE SCALED).
var useText=true;  // true = USE TEXT UNDER THE LINK, false = NO TEXT UNDER THE LINK.
var defText=''  // DEFAULT TEXT TO APPEAR UNDER THE LINKS WHEN NOT HOVERED OVER.
                                    // USE AN EMPTY STRING FOR NO TEXT.
var textGap=10;    // PIXEL GAP FROM BOTTOM OF MENU TO TOP OF OPTIONAL TEXT (WHEN defText IS SET TO true).
var effectW=2.5;   // THE NUMBER OF ICONS AFFECTED BY OF THE MAGNIFICATION AT ONCE (APPROXIMATE). USE VALUES BETWEEN 2 AND 5.

// BELOW IS THE STYLE-SHEET RULE FOR HOW THE TEXT IS TO BE DISPLAYED. USE VALID CSS RULES.

var textStyle="font-family:cursive; font-size:medium; color:yellow; font-weight:bold";


//********** DO NOT EDIT BEYOND THIS POINT **********\\


var w3c=(document.getElementById)?true:false;
var ie4=(document.all && !w3c)?true:false;
var ie5=(document.all && w3c)?true:false;
var ns4=(document.layers)?true:false;
var mx=0;
var overEl=false;
var enterEl=false;
var id=0;
var elList=new Array();
var elText;
var pgLoaded=false;
if(defText=='')defText=' ';
effectW=Math.max(2,Math.min(5,effectW))+.5;
var wA=effectW*endSize/2;
var mX=wA/1.5;

function getMxy(v){
mx=(ie5||ie4)?event.clientX:v.pageX;
}

function getEl(s){
if(ns4)return findLayer(s,document);
else return (ie4)?document.all[s]:document.getElementById(s);
}

function getW(e){
return parseInt(e.style.width);
}

function setImgS(i,x){
elList[i].style.width=x;
elList[i].style.height=x;
document.images['linkDockI'+i].width=x;
document.images['linkDockI'+i].height=x;
}

function getL(el){
var x=0;
var sx=(document.all)?document.body.scrollLeft:0;
while(el.offsetParent!=null){
x+=el.offsetLeft;
el=el.offsetParent;
}
return x+el.offsetLeft-sx;
}

function rAll(){
// decrease size of zoomed images gradually
for(i=0;i<elList.length;i++) {
//<!-- RAJ
curSize=getW(elList[i]);
if (curSize>startSize) {
id=setTimeout('rAll()',10);
curSize--;
// RAJ -->
setImgS(i,curSize);
}}}

function dockMagnify(){
var tEl,n1,n2;
//<!-- RAJ
if(overEl) {if(curSize<endSize) curSize+=5; } else curSize=50;
// RAJ -->
if(overEl){
for(i=0;i<linkList.length;i++){
tEl=elList[i];
if((getL(tEl)>=mx-wA)&&(getL(tEl)<=mx+wA)){
n1=getL(tEl)+getW(tEl)/2+10;
n2=mx-wA;
//<!-- RAJ
n1=(curSize*Math.sin(Math.abs(n1-n2)/mX));
// RAJ -->
setImgS(i,Math.max(n1,startSize));
}else setImgS(i,startSize);
}}}

function mOver(){
overEl=true;
clearTimeout(id);
}

function mOut(){
overEl=false;
id=setTimeout('rAll()',100);
}

// FUNCTION TO FIND NESTED LAYERS IN NS4 BY MIKE HALL
function findLayer(name,doc){
var i,layer;
for(i=0;i<doc.layers.length;i++){
layer=doc.layers[i];
if(layer.name==name)return layer;
if(layer.document.layers.length>0)if((layer=findLayer(name,layer.document))!=null)return layer;
}
return null;
}

function writeText(text){
if(useText && pgLoaded){
text=(text<0)?defText:linkList[text][3];
if(text=='')text=' ';
if(ns4){
elText.document.open();
elText.document.write('<center><span style="'+textStyle+'">'+text+'</span></center>');
elText.document.close();
}
else elText.innerHTML=text;
}}

function writeHTML(){
var t='';
if(w3c||ie4){
t+='<table cellpadding=0 cellspacing=0 border=0 height="'+endSize+'" width="'+(((linkList.length-4)*startSize)+(4*endSize))+'px"><tr valign="bottom" align="center"><td>';
for(i=0;i<linkList.length;i++){
t+='<span id="linkDockD'+i+'" style="width:'+startSize+'px; height:'+startSize+'px;">';
t+='[img]'+linkList[i][1]+'[/img]';
t+='</span>';
}
t+='</td></tr></table>';
if(useText)t+='<center><div id="dockText" style="'+textStyle+'; padding-top:'+textGap+'px">'+defText+'</div></center>';
}else{
t+='<table cellpadding=0 cellspacing=0 border=0 width="'+(linkList.length*startSize)+'"><tr valign="bottom">';
for(i=0;i<linkList.length;i++)t+='<td height="'+endSize+'">[img]'+linkList[i][1]+'[/img]</td>';
t+='</tr>';
if(useText)t+='<tr><td colspan="'+linkList.length+'"><td height="'+textGap+'"></td></tr><tr><td colspan="'+linkList.length+'"><ilayer width="'+(linkList.length*startSize)+'"><layer name="dockText" height="100%"></layer></ilayer></td></tr>';
t+='</table>';
}
document.write(t);
}

window.onload=function(){
if(w3c||ie4){
for(j=0;j<linkList.length;j++){
elList[j]=getEl('linkDockD'+j);
elList[j].n=j;
elList[j].onmouseover=mOver;
elList[j].onmouseout=mOut;
}
document.onmousemove=getMxy;
setInterval('dockMagnify()',20);
}
elText=getEl('dockText');
if(ns4)writeText(-1);
pgLoaded=true;
}

writeHTML();
qualcuno potrebbe aiutarmi?
Più che altro per riuscire ad assimilare meglio...
Grazie mille