Newsgroup: it.comp.www.html
Titolo: PANICO: aiutatemi con il DHTML!!! :o)

Quello sottostante è un codice per creare un menù DHTML...
E'compatibile solo con IE.
Come lo si può adattare anche a Netscape?
in alternativa esiste qualcosa di già pronto?
Thx!
<html>
<head>
<style>
<!--
DIV.clTop{position:absolute; width:170}
DIV.clSub{position:absolute; left:10; width:170}
#divCont{position:relative; left:100; top:0; height:400; width:170;}
A.clMain{font-family:Arial, Verdana, Helvetica, Helv; font-size:14px;
text-decoration:none; font-weight:bold; color:black}
A.clSubb{font-family:Arial, Verdana, Helvetica, Helv; font-size:14px;
text-decoration:none; color:black}
#divMain{position:absolute}
file://-->
</style>
<script language="JavaScript">
/***************************************************************************
*****
Copyright (C) 1999 Thomas Brattli
This script is made by and copyrighted to Thomas Brattli at 
www.bratta.com
Visit for more great scripts.
This may be used freely as long as this msg is intact!
****************************************************************************
****/
/***************************************************************************
*********
This script is a "foldout" menu script, all the "foldouts" will
stay outfolded in older browsers. Works in ie4+ and ns4+.
ADDED: Images
To change where the menu appears change the left and top values of the
divCont
in the stylesheets, it's currently placed relative so you can
place this menu in tables or similar if you want. Change the
text colors and size in the A.clMain and A.clSubb classes.
****************************************************************************
********/
/***************************************************************************
*********
Change this to false if you want all the submenus to get unfold when you
foldout a new one.
****************************************************************************
********/
var stayFolded=false
file://This is the image that it changes to when it expands.
var exImg=new Image(); exImg.src='arrow1.gif'
file://This is the image is changes to with it's "unfolded" or something :}
file://Remeber to change the actual images in the page aswell, but remember
to
file://keep the name of the image.
var unImg=new Image(); unImg.src='arrow.gif'
/***************************************************************************
*********
Browsercheck
****************************************************************************
********/
var n = (document.layers) ? 1:0;
var ie = (document.all) ? 1:0;
var browser=((n || ie) && parseInt(navigator.appVersion)>=4)
/***************************************************************************
*********
Making cross-browser objects
****************************************************************************
********/
function makeMenu(obj,nest){
 nest=(!nest) ? '':'document.'+nest+'.'
 this.css=(n) ?
eval(nest+'document.'+obj):eval('document.all.'+obj+'.style')
    this.ref=(n) ? eval(nest+'document.'+obj+'.document'):eval('document');
 this.height=n?this.ref.height:eval(obj+'.offsetHeight')
 this.x=(n)? this.css.left:this.css.pixelLeft;this.y=(n)?
this.css.top:this.css.pixelTop;
 this.hideIt=b_hideIt; this.showIt=b_showIt; this.vis=b_vis;
this.moveIt=b_moveIt
 return this
}
function b_showIt(){this.css.visibility="visible"}
function b_hideIt(){this.css.visibility="hidden"}
function b_vis(){if(this.css.visibility=="hidden" ||
this.css.visibility=="hide") return true;}
function b_moveIt(x,y){this.x=x; this.y=y; this.css.left=this.x;
this.css.top=this.y}
/***************************************************************************
*********
Initiating the page. Just add to the arrays here to get more menuitems
and add divs in the page
****************************************************************************
********/
function init(){
 oTop=new Array()
 oTop[0]=new makeMenu('divTop1','divCont')
 oTop[1]=new makeMenu('divTop2','divCont')
 oTop[2]=new makeMenu('divTop3','divCont')
 oTop[3]=new makeMenu('divTop4','divCont')
 oTop[4]=new makeMenu('divTop5','divCont')
 oSub=new Array()
 oSub[0]=new makeMenu('divSub1','divCont.document.divTop1')
 oSub[1]=new makeMenu('divSub2','divCont.document.divTop2')
 oSub[2]=new makeMenu('divSub3','divCont.document.divTop3')
 oSub[3]=new makeMenu('divSub4','divCont.document.divTop4')
 oSub[4]=new makeMenu('divSub5','divCont.document.divTop5')
 for(i=0;i<oSub.length;i++){ oSub[i].hideIt() }
for(i=1;i<oTop.length;i++){ oTop[i].moveIt(0,oTop[i-1].y+oTop[i-1].height) }
}
/***************************************************************************
*********
This is the function that changes the sub menus to folded or unfolded state.
****************************************************************************
********/
function menu(num){
 if(browser){
  if(!stayFolded){
   for(i=0;i<oSub.length;i++){
    if(i!=num){
     oSub[i].hideIt()
     oTop[i].ref["imgA"+i].src=unImg.src
    }
   }
   for(i=1;i<oTop.length;i++){
    oTop[i].moveIt(0,oTop[i-1].y+oTop[i-1].height)
   }
  }
  if(oSub[num].vis()){
   oSub[num].showIt()
   oTop[num].ref["imgA"+num].src=exImg.src
  }else{
   oSub[num].hideIt()
   oTop[num].ref["imgA"+num].src=unImg.src
  }
(i=1;i<oTop.length;i++){ 
   if(!oSub[i-1].vis()) oTop[i].moveIt(0,oTop[i-1].y+oTop[i-1].height+oSub[i-1].height) 
   else oTop[i].moveIt(0,oTop[i-1].y+oTop[i-1].height)
  }
 }
}
file://Initiating the menus onload, if it's a 4.x+ browser.
if(browser) onload=init;
</script>
</HEAD>
<BODY bgcolor="white">
<!--************************************************************************************
Replace your links with the # inside the a tags to get links.
************************************************************************************-->
<div id="divCont">
 <div id="divTop1" class="clTop"><a href="#" onclick="menu(0); return false" class="clMain"><img src="arrow.gif" name="imgA0" width=12 height=12 alt="" border="0"> MAILING LIST</a><br>
  <div id="divSub1" class="clSub">
    <a href="
http://www.html.it/mailing/gi
f.htm" class="clSubb">-Una GIF al giorno</a><br>
    <a href="
http://www.html.it/mailing/script.htm
" class="clSubb">-Un
Javascript a settimana</a><br>
  </div><br>
 </div>
 <div id="divTop2" class="clTop"><a href="#" onclick="menu(1); return false"
class="clMain"><img src="arrow.gif" name="imgA1" width=12 height=12 alt=""
border="0"> GRAFICA</a><br>
  <div id="divSub2" class="clSub">
    <a href="
http://www.html.it/grafica/gif.htm
" class="clSubb">-GIF
animate</a><br>
    <a href="
http://www.html.it/grafica/sfondi.htm
"
class="clSubb">-Sfondi</a><br>
  </div><br>
 </div>
 <div id="divTop3" class="clTop"><a href="#" onclick="menu(2); return false"
class="clMain"><img src="arrow.gif" name="imgA2" width=12 height=12 alt=""
border="0"> GUIDE</a><br>
  <div id="divSub3" class="clSub">
    <a href="
http://www.html.it/guida
" class="clSubb">-Guida
all'HTML</a><br>
    <a href="
http://www.html.it/css
" class="clSubb">-Guida ai CSS</a><br>
    <a href="
http://www.html.it/xml
" class="clSubb">-Guida all'XML</a><br>
  </div><br>
 </div>
 <div id="divTop4" class="clTop"><a href="" onclick="menu(3); return false"
class="clMain"><img src="arrow.gif" name="imgA3" width=12 height=12 alt=""
border="0"> ALTRO</a><br>
  <div id="divSub4" class="clSub">
    <a href="
http://www.html.it/font
" class="clSubb">-True Type Font</a><br>
    <a href="
http://www.html.it/articoli
" class="clSubb">-Articoli</a><br>
  </div><br>
 </div>
 <div id="divTop5" class="clTop"><a href="" onclick="menu(4); return false"
class="clMain"><img src="arrow.gif" name="imgA4" width=12 height=12 alt=""
border="0"> ALTRI SITI</a><br>
  <div id="divSub5" class="clSub">
    <a href="
http://www.in-it.com
" class="clSubb">-Informatica
italiana</a><br>
    <a href="
http://www.hwupgrade.com
" class="clSubb">-Hardware
Upgrade</a><br>
    <a href="
http://www.freeonline.org
" class="clSubb">-Free On line</a><br>
    <a href="
http://www.cellularmania.com
"
class="clSubb">-Cellularmania</a><br>
  </div><br>
 </div>
</div>
</BODY>
</HTML>

 in alternativa esiste qualcosa di già pronto?
prova a vedere negli articoli dei giornali di internet News all'indirizzo:
http://inews.tecnet.it
mi pare.
carlito
:)
http://carlito.8m.com