aqui esta el codigo en una pagina html
este form no me deja abrir el arbol..
<form style="margin-top: 0; margin-bottom: 0">
<div ID="mParent" class="parent">
<a name="ma" href="#" onClick="FolderExpand('m','top')">
<img name="mTree" src="images/topopen.gif" class="icon" align="absmiddle" border="0">
<font FACE="VERDANA" color="black" size="1" class="item">Regiones</font></a>
</div>
<div ID="mChild">
<div ID="m1Parent" class="parent"><a name="m1a" href="#" onClick="FolderExpand('m1')"><img name="m1Tree" src="images/Tplus.gif" align="absmiddle" border="0"><img name="m1Folder" src="images/foldericon.jpg" class="icon" align="absmiddle" border="0"><font color="black" face="verdana" size="1" class="item"><b>Región Norte</b></font></a></div>
<div ID="m1Child" CLASS="child">
<SCRIPT TYPE="text/javascript" LANGUAGE="JavaScript">
document.write('<img src="images/I.gif" align="absmiddle"><img src="images/T.gif" align="absmiddle"><img src="images/lupaicon.jpg" align="absmiddle" class="icon">');
document.write('<input type="Checkbox" name="LayerVisible" value="158" Onclick="updateLayers()"');
if (t.LayerVisible[158] == 1) document.write(' checked');
document.writeln('>Activos Integrales');
</script>
<!--</form>-->
</div>
<div ID="m2Parent" class="parent"><a name="m2a" href="#" onClick="FolderExpand('m2')"><img name="m2Tree" src="images/Tplus.gif" align="absmiddle" border="0"><img name="m2Folder" src="images/foldericon.jpg" class="icon" align="absmiddle" border="0"><font color="black" face="verdana" size="1" class="item"><b>Región Sur</b></font></a></div>
<div ID="m2Child" CLASS="child">
<!--<form style="margin-top: 0; margin-bottom: 0">-->
<SCRIPT TYPE="text/javascript" LANGUAGE="JavaScript">
document.write('<img src="images/I.gif" align="absmiddle"><img src="images/T.gif" align="absmiddle"><img src="images/lupaicon.jpg" align="absmiddle" class="icon">');
document.write('<input type="Checkbox" name="LayerVisible" value="151" Onclick="updateLayers()"');
if (t.LayerVisible[151] == 1) document.write(' checked');
document.writeln('>Activos Integrales');
document.write('<img src="images/I.gif" align="absmiddle"><img src="images/L.gif" align="absmiddle"><img src="images/lupaicon.jpg" align="absmiddle" class="icon">');
document.write('<input type="Checkbox" name="LayerVisible" value="139" Onclick="updateLayers()"');
if (t.LayerVisible[139] == 1) document.write(' checked');
document.writeln('>Exploración<br>');
</script>
<!--</form>-->
</div>
</div>
<div ID="m3Parent" class="parent"><a name="m3a" href="#" onClick="FolderExpand('m3')"><img name="m3Tree" src="images/Tplus.gif" align="absmiddle" border="0"><img name="m3Folder" src="images/foldericon.jpg" class="icon" align="absmiddle" border="0"><font color="black" face="verdana" size="1" class="item"><b>Región Marina SO</b></font></a></div>
<div ID="m3Child" CLASS="child">
<!--<form style="margin:0">-->
<SCRIPT TYPE="text/javascript" LANGUAGE="JavaScript">
document.write('<img src="images/I.gif" align="absmiddle"><img src="images/T.gif" align="absmiddle"><img src="images/lupaicon.jpg" align="absmiddle" class="icon">');
document.write('<input type="Checkbox" name="LayerVisible" value="146" Onclick="updateLayers()"');
if (t.LayerVisible[146] == 1) document.write(' checked');
document.writeln('>Activos Integrales');
document.write('<img src="images/I.gif" align="absmiddle"><img src="images/L.gif" align="absmiddle"><img src="images/lupaicon.jpg" align="absmiddle" class="icon">');
document.write('<input type="Checkbox" name="LayerVisible" value="137" Onclick="updateLayers()"');
if (t.LayerVisible[137] == 1) document.write(' checked');
document.writeln('>Exploración<br>');
</script>
<!--</form>-->
</div>
</div>
<div ID="m4Parent" class="parent"><a name="m4a" href="#" onClick="FolderExpand('m4','last')"><img name="m4Tree" src="images/Lplus.gif" align="absmiddle" border="0"><img name="m4Folder" src="images/foldericon.jpg" class="icon" align="absmiddle" border="0"><font color="black" face="verdana" size="1" class="item"><b>Región Marina NO</b></font></a></div>
<div ID="m4Child" CLASS="child">
<!--<form style="margin:0">-->
<SCRIPT TYPE="text/javascript" LANGUAGE="JavaScript">
document.write('<img src="images/white.gif" align="absmiddle"><img src="images/T.gif" align="absmiddle"><img src="images/lupaicon.jpg" align="absmiddle" class="icon">');
document.write('<input type="Checkbox" name="LayerVisible" value="142" Onclick="updateLayers()"');
if (t.LayerVisible[142] == 1) document.write(' checked');
document.writeln('>Activos Integrales');
document.write('<img src="images/white.gif" align="absmiddle"><img src="images/L.gif" align="absmiddle"><img src="images/lupaicon.jpg" align="absmiddle" class="icon">');
document.write('<input type="Checkbox" name="LayerVisible" value="161" Onclick="updateLayers()"');
if (t.LayerVisible[161] == 1) document.write(' checked');
document.writeln('>Exploración<br>');
</script>
</form>
</div>
</div>
</body>
</html