// JavaScript Document


/*cambio stile */
window.onload = function() {
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);


}


//per cambio di foglio di stile aumento carattere
function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
}


function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}



function createCookie(name,value,days) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}


window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);


// per dare immagine agli allegati
function fileLinks() {
    var fileLink;
    if (document.getElementsByTagName('a')) {
        for (var i = 0; (fileLink = document.getElementsByTagName('a')[i]); i++) {
            if (fileLink.href.indexOf('.pdf') != -1) {
                fileLink.setAttribute('target', '_blank');
                fileLink.className = 'pdfLink';
            }
            if (fileLink.href.indexOf('.doc') != -1) {
                fileLink.setAttribute('target', '_blank');
                fileLink.className = 'docLink';
            }
            if (fileLink.href.indexOf('.zip') != -1) {
                fileLink.setAttribute('target', '_blank');
                fileLink.className = 'zipLink';
            }
			if (fileLink.href.indexOf('.xls') != -1) {
                fileLink.setAttribute('target', '_blank');
                fileLink.className = 'xlsLink';
            }
        }
    }
}




function image() {
};

image = new image();
number = 0;
// array di immagini
image[number++] = "<img src='/home/images/pietre.jpg'>"
image[number++] = "<img src='/home/images/acqua.jpg'>"
image[number++] = "<img src='/home/images/aria.jpg'>"
image[number++] = "<img src='/home/images/fuoco.jpg'>"

incremento = Math.floor(Math.random() * number);


function apriPopupCentrata(nome, titolo, lar, alt, feat){
        var wdt = screen.width;
        var hgt = screen.height;
        var x = Math.round( (wdt / 2) - (lar / 2) );
        var y = Math.round( (hgt / 2) - (alt / 2) );
        window.open(nome, titolo, 'width=' + lar + ',height=' + alt + ',left=' + x + ',screenX=' + x + ',top=' + y + ',screenY=' + y + ',' + feat);}


function calcola() {
c = parseFloat("0"+document.guadagno.capitale.value);		// capitale
//i = parseFloat("0"+document.guadagno.interesse.value);	 interesse
i = 0.0325
g = parseFloat("0"+document.guadagno.giorni.value);			// numero giorni
r = Math.floor((c*i*g)/365);						// rata calcolata
document.guadagno.rata.value=r;



}