var browser = navigator.appName;
  var version = parseInt(navigator.appVersion); 

  var NS = (browser == "Netscape"); 
  var IE = (browser == "Microsoft Internet Explorer");
                                                                                         
  var NS4 = (browser == "Netscape" && version == 4); // da ns4 a ns5 escluso...
  var NS5 = (browser == "Netscape" && version == 5); 
  var IE4 = (browser == "Microsoft Internet Explorer" && version == 4);
  var IE5 = (browser == "Microsoft Internet Explorer" && version == 5);
  var NS3 = (browser == "Netscape" && version == 3);
  var IE3 = (browser == "Microsoft Internet Explorer" && version == 3);                                                                                         
  
  var WIN = false;
  var MAC = false;
  var UNIX = false;                                                               
  
  // set platform type ...
                                                               
  if (navigator.platform)  
      if (navigator.platform.indexOf("Win")!=-1)  WIN = true; // windows
      else
      if (navigator.platform.indexOf("Mac")!=-1)  MAC = true;// windows
      else
      if (navigator.platform.indexOf("Linux")!=-1 || navigator.platform.indexOf("Unix")!=-1)  UNIX = true; // windows

  function get_browser() { // returns the browser type/version
     var browser = navigator.appName;
     var version = parseInt(navigator.appVersion); 
     
     var NS4 = (browser == "Netscape" && version >= 4);
     var IE4 = (browser == "Microsoft Internet Explorer" && version >= 4);
     var NS3 = (browser == "Netscape" && version < 4 && version >= 3);
     var IE3 = (browser == "Microsoft Internet Explorer" && version < 4 && version >= 3);
     var OBSOLETE_OR_UNKNOW_BROWSER = (!(NS4 || IE4 || NS3 || IE3));

     if (NS4) return "NS4";
     if (NS3) return "NS3";
     if (IE4) return "IE4";
     if (IE3) return "IE3";
     if (OBSOLETE_OR_UNKNOW_BROWSER) return "OTHER";
  }
  
  function getArgs() {
    var args = new Object();
    var query = location.search.substring(1);
    var params = query.split(",");
    for (var i=0; i<params.length; i++) {
      var pos=params[i].indexOf('=');
      if (pos==-1) continue;
           var argname=params[i].substring(0,pos);
           var value=params[i].substring(pos+1);
           args[argname]=unescape(value);
      }
    return args;
  }  
  
  function getFontOffset() {             
    if (navigator.platform)  
      if (navigator.platform.indexOf("Win")==-1)  return 1 // windows
      else return 0 // mac
    return 0
  }  
  
  function openInner(url, name, param, innerW, innerH) {
    var i_win;
    if (NS) i_win=window.top.open(url, name, param+",innerHeight="+innerH+",innerWidth="+innerW);
    else if (IE&&WIN) {  
      test_=window.top.open("","","width=600,height=300"+param);
      offW=600-test_.document.body.clientWidth;
      offH=300-test_.document.body.clientHeight;
      test_.close();
      i_win=window.top.open(url, name, param+",width="+(innerW+offW)+",height="+(innerH+offH));
    }  
    else if (IE&&MAC) {  
      offH=77;
      offW=0;
      i_win=window.top.open(url, name, param+",width="+(innerW+offW)+",height="+(innerH+offH));
    }          
    return i_win;
  }

  
  function resizeInner(innerW, innerH) {
    if (NS) {
        window.innerHeight = innerH;      
        window.innerWidth  = innerW;
    }
    else if (IE) {    
      window.resizeTo(640, 480);
      var offw = 640 - document.body.clientWidth;
      var offh = 480 - document.body.clientHeight;
      resizeTo(innerW + offw, innerH + offh);
    }  
  }
  
  if ((typeof w__contact) == "undefined") w__contact=null;                                
  
  function open_contact() {                                          
  if (w__contact == null || w__contact.closed)  {
   if (NS)                        w__contact=open("c.htm", "contact", "innerHeight=450,innerWidth=505,resizable=no,scrollbars=no,menubar=no,directories=no,location=no,status=no,toolbar=no");
   else if (getPlatform()=="MAC") w__contact=open("c.htm", "contact", "resizable=no,scrollbars=no,menubar=no,directories=no,location=no,status=no,toolbar=no");	
        else                      w__contact=open("c.htm", "contact", "resizable=no,scrollbars=no,menubar=no,directories=no,location=no,status=no,toolbar=no");      	
  }
  else {w__contact.focus();}
  }

  function getPlatform() {
    if (navigator.platform)  
      if (navigator.platform.indexOf("Win")!=-1)  return "WIN" // windows
      else
      if (navigator.platform.indexOf("Mac")!=-1)  return "MAC" // windows
      else return "UNKNOWN PLATFORM"
    else return "NOT AVAILABLE"
  }