//Riconoscimento del Browser
function Is() {
	var agent = navigator.userAgent.toLowerCase();
	this.major = parseInt(navigator.appVersion);
	this.minor = parseFloat(navigator.appVersion);
	this.dom=document.getElementById?1:0;
	this.os=navigator.platform.toLowerCase();
	
	//Os
	this.win=(this.os.indexOf("win")? false:true);
	this.mac=(this.os.indexOf("mac")? false:true);
	    
	//Netscape
	this.ns  = ((agent.indexOf('mozilla')!=-1) && ((agent.indexOf('spoofer')==-1) && (agent.indexOf('compatible') == -1)));
	this.ns2 = (this.ns && (this.major == 2));
	this.ns3 = (this.ns && (this.major == 3));
	this.ns4b = (this.ns && (this.major == 4) && (this.minor <= 4.03));
	this.ns45 = (this.ns && (this.minor >= 4.5) && (this.minor <= 4.51));
	this.ns4 = (this.ns && (this.major >= 4) && (this.minor < 5));
	this.ns5 = (this.dom = 1 && (this.major >= 5));
	  
	//Explorer
	this.ie   = (agent.indexOf("msie") != -1);
	this.ie3  = (this.ie && (this.major == 2));
	this.ie4  = (this.ie && (this.major >= 4));
	this.ie5 = (this.ie && (this.major == 4) && (agent.indexOf("msie 5.0") != -1));    
	this.ie55 = (this.ie && (this.major == 4) && (agent.indexOf("msie 5.5") != -1));
	
	//Aol
	this.aol = (agent.indexOf("aol") != -1);
	this.aol3 = (this.aol && this.ie3); 
	this.aol4 = (this.aol && this.ie4); 
	this.aol5 = (this.aol && this.ie5);
	
	//Opera
	this.op = (agent.indexOf("opera") != -1);
	this.op3 = (agent.indexOf("opera") != -1 && (this.major < 4));
	this.op4 = (agent.indexOf("opera") != -1 && (this.major >= 4));

}

var is = new Is()


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_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_swapImage() { //v3.0
  //alert (i);
  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];}
}

function jumptolink(what){
var selectedopt=what.options[what.selectedIndex]
window.location=selectedopt.value
}

function cambia_img(){
				var numeroOgg = 7;
				 var x=0; 
				 while (x>numeroOgg || x==0) {
				 			 x=Math.round((Math.random()*100));
				 }
				 var ogg="foto_home_"+x+".jpg";				 
				 var code= "<img src=\"img/"+ogg+"\" alt=\"Foto\" width=\"433\" height=\"153\" border=\"0\">";		
				return code; 
}
function cambia_img_animal(){
				var numeroOgg = 9;
				 var x=0; 
				 while (x>numeroOgg || x==0) {
				 			 x=Math.round((Math.random()*100));
				 }
				 var ogg="animali_home_"+x+".jpg";				 
				 var code= "<img src=\"img/"+ogg+"\" alt=\"FOTO\" width=\"114\" height=\"153\" border=\"0\">";		
				return code; 
}

// Foglio di stile
if(is.ns4)
		document.write('<link rel="stylesheet" href="../style/ns.css" type="text/css">')
	else
		document.write('<link rel="stylesheet" href="../style/ie.css" type="text/css">')