var nome_browser=navigator.appName.substring(0,8);
var ver_browser=parseInt(navigator.appVersion);
var compatibile=false;
if ((nome_browser=="Netscape")&&(ver_browser>=4))compatibile=true;
if ((nome_browser=="Microsof")&&(ver_browser>=4))compatibile=true;
var risoluzione=0;
if(compatibile){
   if(screen.availWidth>=1024)risoluzione=1;
   }
//**************************************************************
function swap(pnome){

if(compatibile){
var s=pnome;
  with(document){
     this.i=new Image();this.i.src=images[s].src;images[s].src=images[s].lowsrc;images[s].lowsrc=this.i.src;
     }
  }
}
//**************************************************************
function carica(){

if(compatibile){
  with(document){
    var tt=0;
    ii=new Array (images.length);
    while (tt<images.length){this.ii[tt]=new Image();this.ii[tt].src=images[tt].lowsrc;tt=tt+1;}
    }
  }
}
//**************************************************************

function scrolla(pnome_ancora){

//=============================

function x_ancora(pnome_ancora){

  var pmedio=Math.floor((screen.availWidth-160-120)/2)

    with(document){
      for(var t=0;t<anchors.length;t++){
        var a=anchors[t];
        if(a.name==pnome_ancora){if(nome_browser=='Netscape'){return(a.x-pmedio);}
                                 if(nome_browser=='Microsof'){var b=a.offsetParent;
                                                              var c=b.offsetParent;
                                                              var d=c.offsetParent;
                                                              return(a.offsetLeft+b.offsetLeft+c.offsetLeft+d.offsetLeft-pmedio);}
                                }
      }
    }
  return(0);
  }
//=============================

if(compatibile){
   window.scrollTo(x_ancora(pnome_ancora),0);
   }
}