/* This script and many more are available free online at
The JavaScript Source!! http://javascript.internet.com
Created by: Michael Leigeber | http://www.leigeber.com/Licensed under: U.S. Copyright
 */

// form validation function //
function validate(form) {
  var Nome = form.Nome.value;
  var Cognome = form.Cognome.value;
  var Citta = form.Citta.value;
  var CAP = form.CAP.value;
  var Indirizzo = form.Indirizzo.value;
  var Email = form.Email.value;
  var Telefono = form.Telefono.value;
  var Richiesta = form.Richiesta.value;
  if(Nome == "") {
    inlineMsg('Nome', '- Il campo "Nome" &egrave; obbligatorio.<br>- "Name" is a required field.', 2);
    return false;
  }
  if(Cognome == "") {
    inlineMsg('Cognome', '- Il campo "Cognome" &egrave; obbligatorio.<br>- "Surname" is a required field.', 2);
    return false;
  }
  if(Citta == "") {
    inlineMsg('Citta','- Il campo "Citta" &egrave; obbligatorio.<br>- "Town" is a required field',2);
    return false;
  }
  if(CAP == "") {
    inlineMsg('CAP', '- Il campo "C.A.P." &egrave; obbligatorio.<br>- "ZIP code" is a required field', 2);
    return false;
  }
  if(Indirizzo == "") {
    inlineMsg('Indirizzo','- Il campo "Indirizzo" &egrave; obbligatorio.<br>- "Address" is a required field',2);
    return false;
  }
  if(Email == "") {
    inlineMsg('Email','- Il campo "E-Mail" &egrave; obbligatorio.<br>- "Email" is a required field',2);
    return false;
  }
  if(Telefono == "") {
    inlineMsg('Telefono','- Il campo "Telefono" &egrave; obbligatorio.<br>- "Phone" is a required field',2);
    return false;
  }
  if(Richiesta == "") {
    inlineMsg('Richiesta','- Il campo "Richiesta" &egrave; obbligatorio.<br>- "Comments" is a required field',2);
    return false;
  }
  return true;
}

// START OF MESSAGE SCRIPT //

var MSGTIMER = 20;
var MSGSPEED = 5;
var MSGOFFSET = 3;
var MSGHIDE = 3;

// build out the divs, set attributes and call the fade function //
function inlineMsg(target,string,autohide) {
  var msg;
  var msgcontent;
  if(!document.getElementById('msg')) {
    msg = document.createElement('div');
    msg.id = 'msg';
    msgcontent = document.createElement('div');
    msgcontent.id = 'msgcontent';
    document.body.appendChild(msg);
    msg.appendChild(msgcontent);
    msg.style.filter = 'alpha(opacity=0)';
    msg.style.opacity = 0;
    msg.alpha = 0;
  } else {
    msg = document.getElementById('msg');
    msgcontent = document.getElementById('msgcontent');
  }
  msgcontent.innerHTML = string;
  msg.style.display = 'block';
  var msgheight = msg.offsetHeight;
  var targetdiv = document.getElementById(target);
  targetdiv.focus();
  var targetheight = targetdiv.offsetHeight;
  var targetwidth = targetdiv.offsetWidth;
  var topposition = topPosition(targetdiv) - ((msgheight - targetheight) / 2);
  var leftposition = leftPosition(targetdiv) + targetwidth + MSGOFFSET;
  msg.style.top = topposition + 'px';
  msg.style.left = leftposition + 'px';
  clearInterval(msg.timer);
  msg.timer = setInterval("fadeMsg(1)", MSGTIMER);
  if(!autohide) {
    autohide = MSGHIDE;
  }
  window.setTimeout("hideMsg()", (autohide * 1000));
}

// hide the form alert //
function hideMsg(msg) {
  var msg = document.getElementById('msg');
  if(!msg.timer) {
    msg.timer = setInterval("fadeMsg(0)", MSGTIMER);
  }
}

// face the message box //
function fadeMsg(flag) {
  if(flag == null) {
    flag = 1;
  }
  var msg = document.getElementById('msg');
  var value;
  if(flag == 1) {
    value = msg.alpha + MSGSPEED;
  } else {
    value = msg.alpha - MSGSPEED;
  }
  msg.alpha = value;
  msg.style.opacity = (value / 100);
  msg.style.filter = 'alpha(opacity=' + value + ')';
  if(value >= 99) {
    clearInterval(msg.timer);
    msg.timer = null;
  } else if(value <= 1) {
    msg.style.display = "none";
    clearInterval(msg.timer);
  }
}

// calculate the position of the element in relation to the left of the browser //
function leftPosition(target) {
  var left = 0;
  if(target.offsetParent) {
    while(1) {
      left += target.offsetLeft;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.x) {
    left += target.x;
  }
  return left;
}

// calculate the position of the element in relation to the top of the browser window //
function topPosition(target) {
  var top = 0;
  if(target.offsetParent) {
    while(1) {
      top += target.offsetTop;
      if(!target.offsetParent) {
        break;
      }
      target = target.offsetParent;
    }
  } else if(target.y) {
    top += target.y;
  }
  return top;
}

// preload the arrow //
if(document.images) {
  arrow = new Image(7,80);
  arrow.src = "msg_arrow.gif";
}


// script per controllo checkbox Privacy //

var checkobj
function accetta(el) {
    checkobj = el
    if (document.all || document.getElementById) {
        for (i = 0; i < checkobj.form.length; i++) {
            var tempobj = checkobj.form.elements[i]
            if (tempobj.type.toLowerCase() == "submit")
                tempobj.disabled = !checkobj.checked
        }
    }
}

function disabilita(el) {
    if (!document.all && !document.getElementById) {
        if (window.checkobj && checkobj.checked)
            return true
        else {
            alert("Per favore accetta i termini del contratto")
            return false
        }
    }
}