// preload img
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_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_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];}
}

// cambia sfondo stelline
function cambiaSfondo(livello, voto){
	
	document.getElementById(livello).style.backgroundImage="url(img/icone/rating/rt"+voto+".gif)";
	
}

function resetSfondo(livello, avg){

	document.getElementById(livello).style.backgroundImage="url(img/icone/rating/avg"+avg+".gif)";
	
}

// auto-resize campi di testo
resizeIt = function(nomeCampo) {

	var str = $(nomeCampo).value;
	var cols = $(nomeCampo).cols;
	var linecount = 0;
	
	$A(str.split("\n")).each( function(l) {
				linecount += Math.ceil(l.length / cols); // take into account long lines
			}
		)
	
	$(nomeCampo).rows = linecount + 2;
};

// invio form ajax
function formToString(form){
	var str			= "";
	var elements	= form.elements;
	for(var i=0;i<elements.length;i++){
		var el = form.elements[i]; 
		if(el.tagName=="INPUT"){
			if(el.type.toUpperCase()=="RADIO"){
				if(!el.checked)
					continue;
			}
			if(el.type.toUpperCase()=="CHECKBOX"){
				if(!el.checked)
					continue;
			}
		}
		if(!el.name)
			continue;
		if(str!="")
			str += "&";
		str += el.name + "=" + form.elements[i].value;
	}
	return str;
}

function numeri(campo){
	
	var chiffres = new RegExp("[0-9]"); /* Modifier pour : var chiffres = new RegExp("[0-9]"); */
	var verif;
	var points = 0;

	for(x = 0; x < campo.value.length; x++){
		
		verif = chiffres.test(campo.value.charAt(x));
		
		if(campo.value.charAt(x) == "."){
			points++;
		}
		
		if(points > 1){
			verif = false; 
			points = 1;
		}
		
		if(verif == false){
			campo.value = campo.value.substr(0,x) + campo.value.substr(x+1,campo.value.length-x+1);
			x--;
		}
		
	}

}