function getObj(id) {
    var retval;
    if (typeof document.getElementById != 'undefined') {
        retval = document.getElementById(id);
    } else if (typeof document.all != 'undefined') {
        retval = document.all[id];
    } else {
        retval = false;
    }
    return retval;
}

// SHOW - HIDE
ndiv = 2;

function showHideObject() { 
	var i,p,v,obj,args=showHideObject.arguments;
	for (i=0; i<(args.length-1); i+=2) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+1];
	if (obj.style) { obj=obj.style; v=(v=='off')?'none':(v=='on')?'block':v; }
	obj.display=v; }
}

function on(myDiv) { 
	divNameToOn = 'box'+myDiv;
	for (i=0; i<ndiv+1; i++) {
		divName =  'box'+i;
		showHideObject(divName,'off');
	}
	showHideObject(divNameToOn,'on');
}
on(0);

function MM_findObj(n, d) { 
  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 VIL_facebookFilter(myUrl) {
	choice=window.confirm('Attenzione che ti stai avventurando sulla cattiva strada...');
	if (choice) window.open('http://www.facebook.com/sharer.php?u='+myUrl,'fbWin');
	else return;
}