function MM_swapImgRestore2() { //v3.0
  var i,x,a=document.MM_sr2; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_swapImage2() { //v3.0
  var i,j=0,x,a=MM_swapImage2.arguments; document.MM_sr2=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr2[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function alfabeto (baseUrl, lettera){
    var str = "", alfabetoL = "abcdefghijklmnopqrstuvwyxz"; 
    var URL = baseUrl + "&LETTERA_Glossary=";

    for (i = 0; i < 26; i++) 
    {
        l = alfabetoL.charAt(i);
	    MM_preloadImages('../img/lettere/'+l+"_.gif");
	    var stl = zen_bFirefox ? i < 25 ? "style='margin-right:5px;'" : "" : i > 0 && i != 13? "style='margin-left:5px;'" : "" ;
	    if (l != lettera)
		    str += "<a " + stl + " href='" + URL + l + "' onmouseover=\"MM_swapImage2('l-"+l+"','','../img/lettere/"+l+"_.gif',1)\" onmouseout=\"MM_swapImgRestore2()\"><img name='l-"+l+"' src='../img/lettere/"+l+".gif' alt='' border='0'></a>";		
	    else 
		    str += "<img " + stl + " src='../img/lettere/" + l + "_.gif' alt='' border='0'>";
	    if(i == 12)	
		    str+= '<br>';
	//if(i < 25)
	//	str += "<span style='width:5px;'></span>";	
    }
    return str;
}