//-------------------
//--FUNZIONI GLOBALI
//-------------------

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

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

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

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

//-----------------------
//--CONTROLLO DEL FORM DI 
//--RICERCA
//-----------------------

function checkFormEva(which){
	var msg_alert = "Attenzione!";
	var pass = true;
	var checkTitle = 0;
	var checkTitleLength = 0
	var checkAuthorLength = 0
	var checkAuthor = 0;
	var checkDay = 0;
	var checkMonth = 0;
	var checkInt = 0;
	for(i=0;i<which.length;i++){
		if((which.elements[i].name=="TXT_titolo")&&(which.elements[i].value=="")){
			checkTitle++;
		}
		if((which.elements[i].name=="TXT_titolo")&&(which.elements[i].value.length < 3)&&(which.elements[i].value!="")){
			checkTitleLength++;
		}
		if((which.elements[i].name=="TXT_autore")&&(which.elements[i].value=="")){
			checkAuthor++;
		}
		if((which.elements[i].name=="TXT_autore")&&(which.elements[i].value.length < 3)&&(which.elements[i].value!="")){
			checkAuthorLength++;
		}
	}
	if((checkTitle!=0)&&(checkAuthor!=0)){
		msg_alert += "\nE\' necessario compilare almeno un campo tra \"titolo\" e \"autore\".";
		pass = false;
	}
	if((checkTitleLength!=0)||(checkAuthorLength!=0)){
		msg_alert += "\nLa ricerca per il campo \"titolo\" o \"autore\" richiede l\'inserimento di un minimo di tre caratteri.";
		pass = false;
	}
	if(!pass){
		alert(msg_alert);
		return false
	}
}

function checkFormGea(which){
	for(i=0;i<which.length;i++){
		if((which.elements[i].name=="search_anno")&&(which.elements[i].value=="")){
			alert("Attenzione!\nE\' necessario compliare almeno il campo relativo all'anno");
			return false;
		}
	}
}

function checkForm(which){
	for(i=0;i<which.length;i++){
		if((which.elements[i].name=="SearchString")&&(which.elements[i].value=="")){
			alert("Attenzione!\nE\' necessario compliare il campo titolo");
			return false;
		}
	}
}

function FullScreen(theURL) {
  myWin=window.open(theURL,'FullScreen','width=750,height=540,resizable=yes,scrollbars=no');
  myWin.focus();
}