function svuota(campo,stringa) {
    if (campo.value==stringa)  campo.value='';
}

//    /////////////////////////////////////////////

function vai(url) {
    setTimeout('parent.location.href="'+ url +'"',1);
}

//    /////////////////////////////////////////////
  
function showtip(current,e,varString)
{
    if (document.layers) // Netscape 4.0+
    {
         theString="<DIV CLASS='ttip'>"+varString+"</DIV>"
         document.tooltip.document.write(theString)
         document.tooltip.document.close()
         document.tooltip.visibility="show"
    }
    else
    {
        if(document.getElementById) // Netscape 6.0+ and Internet Explorer 5.0+
        {
            elm=document.getElementById("tooltip")
            tcat=document.getElementById("tc")
            elml=current
            elm.innerHTML=varString
            elm.style.height=elml.style.height
            elm.style.top=elml.style.top;//parseInt(elml.offsetTop+elml.offsetHeight)
            elm.style.left=elml.style.left;//parseInt(elml.offsetLeft+elml.offsetWidth)
            elm.style.visibility = "visible"
            tcat.style.visibility = "hidden"
        }
    }
}

function hidetip(){
if (document.layers) // Netscape 4.0+
   {
    document.tooltip.visibility="hidden"
   }
else
  {
    if(document.getElementById) // Netscape 6.0+ and Internet Explorer 5.0+
    {
        elm.style.visibility="hidden"
        tcat.style.visibility = "visible"
    }
  } 
}

//    //////////////////////////////////////////////

var BV = parseInt(navigator.appVersion);
var BN = "";
if (navigator.userAgent.indexOf("MSIE") >= 0) {BN = "e";}
else {
    if (navigator.appName.indexOf("Netscape") >= 0) {BN = "n";}
    else {BN = "g"}
}
if (!(top.ad)) {
    l = (document.all) ? location : location.pathname.toString();
    // location = "/frame.html?p=" + l;
}
/*function openwin(url) {
var winFeatures = 'width=650,height=435,top=100,scrollbars=yes,resizable=yes,toolbar=yes';
win = open(url,'feature',winFeatures);
if (BV == 2 && (navigator.appVersion.indexOf('mac')>= 0)) {win = open('url','feature',winFeatures)}
if (BV == 2 && BN == 'n') {win.opener = top.self;}
}*/




/*
  function ContaParole(campo) {
      // Numero di parole della biografia aggiornato al volo
     var nCaratteri = campo.value.length;
       var stringaPiena = campo.value + " ";
       var regExp_spazioIniziale = /^[^A-Za-z0-9]+/gi;
       var stringaTagliataSinistra = stringaPiena.replace(regExp_spazioIniziale, "");
       var regExp_nonalfanumerici = rExp = /[^A-Za-z0-9]+/gi;
       var stringaPulita = stringaTagliataSinistra.replace(regExp_nonalfanumerici, " ");
       var stringaDivisa = stringaPulita.split(" ");
       var nParole = stringaDivisa.length -1;
       document.modulo.outputPar.value="<?echo$testo_parole?>: "+nParole;
  }
*/


//    /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//    /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

// browser identification

agt = navigator.userAgent.toLowerCase();
is_ie       = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
is_opera  = (agt.indexOf("opera") != -1);
is_mac       = (agt.indexOf("mac") != -1);
is_mac_ie = (is_ie && is_mac);
is_win_ie = (is_ie && !is_mac);
is_gecko  = (navigator.product == "Gecko");

// variable used to pass the object to the popup editor window.
_object = null;

// function that returns a clone of the given object
cloneObject = function(obj) {
    var newObj = new Object;

    // check for array objects
    if (obj.constructor.toString().indexOf("function Array(") == 1) {
        newObj = obj.constructor();
    }

    // check for function objects (as usual, IE is fucked up)
    if (obj.constructor.toString().indexOf("function Function(") == 1) {
        newObj = obj; // just copy reference to it
    } else for (var n in obj) {
        var node = obj[n];
        if (typeof node == 'object') { newObj[n] = cloneObject(node); }
        else                         { newObj[n] = node; }
    }

    return newObj;
};

// FIXME!!! this should return false for IE < 5.5
checkSupportedBrowser = function() {
    if (is_gecko) {
        if (navigator.productSub < 20021201) {
            alert("You need at least Mozilla-1.3 Alpha.\n" +
                  "Sorry, your Gecko is not supported.");
            return false;
        }
        if (navigator.productSub < 20030210) {
            alert("Mozilla < 1.3 Beta is not supported!\n" +
                  "I'll try, though, but it might not work.");
        }
    }
    return is_gecko || is_ie;
};


// event handling

_addEvent = function(el, evname, func) {
    if (is_ie) {
        el.attachEvent("on" + evname, func);
    } else {
        el.addEventListener(evname, func, true);
    }
};

_addEvents = function(el, evs, func) {
    for (var i in evs) {
        _addEvent(el, evs[i], func);
    }
};

_removeEvent = function(el, evname, func) {
    if (is_ie) {
        el.detachEvent("on" + evname, func);
    } else {
        el.removeEventListener(evname, func, true);
    }
};

_removeEvents = function(el, evs, func) {
    for (var i in evs) {
        _removeEvent(el, evs[i], func);
    }
};

_stopEvent = function(ev) {
    if (is_ie) {
        ev.cancelBubble = true;
        ev.returnValue = false;
    } else {
        ev.preventDefault();
        ev.stopPropagation();
    }
};


//    //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


function openwin(url, action, init) {
    if (typeof init == "undefined") {
        init = window;    // pass this window object by default
    }
    openwin._geckoOpenModal(url, action, init);
};

openwin._parentEvent = function(ev) {
    if (openwin._modal && !openwin._modal.closed) {
        openwin._modal.focus();
        _stopEvent(ev);
    }
};

// should be a function, the return handler of the currently opened dialog.
openwin._return = null;

// constant, the currently opened dialog
openwin._modal = null;

// the dialog will read it's args from this variable
openwin._arguments = null;

openwin._geckoOpenModal = function(url, action, init) {
    self.name = "main";
    var dlg = window.open(url, "hadialog",
                  "toolbar=yes,menubar=no,personalbar=no,width=660,height=500," +
                  "scrollbars=yes,resizable=yes");
    dlg.creator = self;
    openwin._modal = dlg;
    openwin._arguments = init;

    // capture some window's events
    function capwin(w) {
        _addEvent(w, "click", openwin._parentEvent);
        _addEvent(w, "mousedown", openwin._parentEvent);
        _addEvent(w, "focus", openwin._parentEvent);
    };
    // release the captured events
    function relwin(w) {
        _removeEvent(w, "click", openwin._parentEvent);
        _removeEvent(w, "mousedown", openwin._parentEvent);
        _removeEvent(w, "focus", openwin._parentEvent);
    };
    capwin(window);
    // capture other frames
    for (var i = 0; i < window.frames.length; capwin(window.frames[i++]));
    // make up a function to be called when the openwin ends.
    openwin._return = function (val) {
        if (val && action) {
            action(val);
        }
        relwin(window);
        // capture other frames
        for (var i = 0; i < window.frames.length; relwin(window.frames[i++]));
        openwin._modal = null;
    };
};



//            /////////////////////////////////////
function insertTags(tagOpen, tagClose, sampleText, taname) {
    if(taname=='text')
        var txtarea = document.form.text;//wpTextbox1;
    else if(taname=='post_text')
        var txtarea = document.form.post_text;//wpTextbox1;
    else if(taname=='im_message')
        var txtarea = document.form.im_message;//wpTextbox1;
    // IE
    if(document.selection  && !is_gecko) {
        var theSelection = document.selection.createRange().text;
        if(!theSelection) { theSelection=sampleText;}
        txtarea.focus();
        if(theSelection.charAt(theSelection.length - 1) == " "){// exclude ending space char, if any
            theSelection = theSelection.substring(0, theSelection.length - 1);
            document.selection.createRange().text = tagOpen + theSelection + tagClose + " ";
        } else {
            document.selection.createRange().text = tagOpen + theSelection + tagClose;
        }

    // Mozilla
    } else if(txtarea.selectionStart || txtarea.selectionStart == '0') {
         var startPos = txtarea.selectionStart;
        var endPos = txtarea.selectionEnd;
        var scrollTop=txtarea.scrollTop;
        var myText = (txtarea.value).substring(startPos, endPos);
        if(!myText) { myText=sampleText;}
        if(myText.charAt(myText.length - 1) == " "){ // exclude ending space char, if any
            subst = tagOpen + myText.substring(0, (myText.length - 1)) + tagClose + " ";
        } else {
            subst = tagOpen + myText + tagClose;
        }
        txtarea.value = txtarea.value.substring(0, startPos) + subst +
          txtarea.value.substring(endPos, txtarea.value.length);
        txtarea.focus();

        var cPos=startPos+(tagOpen.length+myText.length+tagClose.length);
        txtarea.selectionStart=cPos;
        txtarea.selectionEnd=cPos;
        txtarea.scrollTop=scrollTop;

    // All others
    } else {
        var copy_alertText=alertText;
        var re1=new RegExp("\\$1","g");
        var re2=new RegExp("\\$2","g");
        copy_alertText=copy_alertText.replace(re1,sampleText);
        copy_alertText=copy_alertText.replace(re2,tagOpen+sampleText+tagClose);
        var text;
        if (sampleText) {
            text=prompt(copy_alertText);
        } else {
            text="";
        }
        if(!text) { text=sampleText;}
        text=tagOpen+text+tagClose;
        document.infoform.infobox.value=text;
        // in Safari this causes scrolling
        if(!is_safari) {
            txtarea.focus();
        }
        noOverwrite=true;
    }
    // reposition cursor if possible
    if (txtarea.createTextRange) txtarea.caretPos = document.selection.createRange().duplicate();
}