function VKBrowserType ()
{
    var agt=navigator.userAgent.toLowerCase();
    this.major = parseInt(navigator.appVersion);
    this.minor = parseFloat(navigator.appVersion);
    this.nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
                && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)
                && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));
    this.nav2 = (this.nav && (this.major == 2));
    this.nav3 = (this.nav && (this.major == 3));
    this.nav4 = (this.nav && (this.major == 4));
    this.nav4up = (this.nav && (this.major >= 4));
    this.navonly      = (this.nav && ((agt.indexOf(";nav") != -1) ||
                          (agt.indexOf("; nav") != -1)) );
    this.nav6 = (this.nav && (this.major == 5));
    this.nav6up = (this.nav && (this.major >= 5));
    this.gecko = (agt.indexOf('gecko') != -1);
    this.ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
    this.ie3    = (this.ie && (this.major < 4));
    this.ie4    = (this.ie && (this.major == 4) && (agt.indexOf("msie 4")!=-1) );
    this.ie4up  = (this.ie && (this.major >= 4));
    this.ie5    = (this.ie && (this.major == 4) && (agt.indexOf("msie 5.0")!=-1) );
    this.ie5_5  = (this.ie && (this.major == 4) && (agt.indexOf("msie 5.5") !=-1));
    this.ie5up  = (this.ie && !this.ie3 && !this.ie4);
    this.ie5_5up =(this.ie && !this.ie3 && !this.ie4 && !this.ie5);
    this.ie6    = (this.ie && (this.major == 4) && (agt.indexOf("msie 6.")!=-1) );
    this.ie6up  = (this.ie && !this.ie3 && !this.ie4 && !this.ie5 && !this.ie5_5);
    this.aol   = (agt.indexOf("aol") != -1);
    this.aol3  = (this.aol && this.ie3);
    this.aol4  = (this.aol && this.ie4);
    this.aol5  = (agt.indexOf("aol 5") != -1);
    this.aol6  = (agt.indexOf("aol 6") != -1);
    this.opera = (agt.indexOf("opera") != -1);
    this.opera2 = (agt.indexOf("opera 2") != -1 || agt.indexOf("opera/2") != -1);
    this.opera3 = (agt.indexOf("opera 3") != -1 || agt.indexOf("opera/3") != -1);
    this.opera4 = (agt.indexOf("opera 4") != -1 || agt.indexOf("opera/4") != -1);
    this.opera5 = (agt.indexOf("opera 5") != -1 || agt.indexOf("opera/5") != -1);
    this.opera5up = (this.opera && !this.opera2 && !this.opera3 && !this.opera4);
    this.webtv = (agt.indexOf("webtv") != -1); 
    this.TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1)); 
    this.AOLTV = this.TVNavigator;
    this.hotjava = (agt.indexOf("hotjava") != -1);
    this.hotjava3 = (this.hotjava && (this.major == 3));
    this.hotjava3up = (this.hotjava && (this.major >= 3));
}

var vk_BrowserType = new VKBrowserType();

if (vk_BrowserType.nav6up) {
	// On Nav 6 we need to set up global handler
	document.onkeypress = handleNav6Keys;
}

function handleNav6Keys(event) {
   return true;
};

function georgianKeyboard(event, eventTarget, switchComp) {
   var keyCode;
   if (vk_BrowserType.ie4up || vk_BrowserType.opera)  {
      keyCode = event.keyCode;
   } else {
      if (vk_BrowserType.nav6up) {
         keyCode = event.which;
      }  else {
         // Unsupported browser
         return true;
      }
   }
   
   if (switchComp != null && switchComp != 'undefined') {
      if (keyCode == 96) {
         switchComp.checked = !switchComp.checked;
         return false;
      }
   
      if (switchComp.checked) {
         if (vk_BrowserType.nav6up) {
            return handleNav6Key(event, keyCode, eventTarget);
         } else {
           // IE/Opera
           return handleIEKey(event, keyCode, eventTarget);
        }
      }
   }
}

function handleIEKey(event, keyCode, eventTarget) {
if (event.keyCode==97) event.keyCode=4304; 
if (event.keyCode==98) event.keyCode=4305; 
if (event.keyCode==103) event.keyCode=4306;
if (event.keyCode==100) event.keyCode=4307;
if (event.keyCode==101) event.keyCode=4308;
if (event.keyCode==118) event.keyCode=4309;
if (event.keyCode==122) event.keyCode=4310;
if (event.keyCode==84) event.keyCode=4311;
if (event.keyCode==105) event.keyCode=4312;
if (event.keyCode==107) event.keyCode=4313;
if (event.keyCode==108) event.keyCode=4314;
if (event.keyCode==109) event.keyCode=4315;
if (event.keyCode==110) event.keyCode=4316;
if (event.keyCode==111) event.keyCode=4317;
if (event.keyCode==112) event.keyCode=4318;
if (event.keyCode==74) event.keyCode=4319;
if (event.keyCode==114) event.keyCode=4320;
if (event.keyCode==115) event.keyCode=4321;
if (event.keyCode==116) event.keyCode=4322;
if (event.keyCode==117) event.keyCode=4323;
if (event.keyCode==102) event.keyCode=4324;
if (event.keyCode==113) event.keyCode=4325;
if (event.keyCode==82) event.keyCode=4326;
if (event.keyCode==121) event.keyCode=4327;
if (event.keyCode==83) event.keyCode=4328;
if (event.keyCode==67) event.keyCode=4329;
if (event.keyCode==99) event.keyCode=4330;
if (event.keyCode==90) event.keyCode=4331;
if (event.keyCode==119) event.keyCode=4332;
if (event.keyCode==87) event.keyCode=4333;
if (event.keyCode==120) event.keyCode=4334;
if (event.keyCode==106) event.keyCode=4335;
if (event.keyCode==104) event.keyCode=4336;

  return true;
}

function handleNav6Key(e, keyCode, eventTarget) {
if (e.altKey || e.ctrlKey) {
   return true;
}
if (e.which==97) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10D0"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==98) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10D1"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==103) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10D2"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==100) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10D3"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==101) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10D4"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==118) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10D5"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==122) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10D6"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==84) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10D7"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==105) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10D8"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==107) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10D9"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==108) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10DA"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==109) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10DB"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==110) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10DC"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==111) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10DD"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==112) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10DE"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==74) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10DF"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==114) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10E0"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==115) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10E1"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==116) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10E2"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==117) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10E3"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==102) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10E4"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==113) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10E5"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==82) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10E6"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==121) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10E7"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==83) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10E8"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==67) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10E9"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==99) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10EA"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==90) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10EB"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==119) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10EC"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==87) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10ED"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==120) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10EE"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==106) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10EF"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}
if (e.which==104) { var f=e.target; var g=f.selectionStart; f.value=f.value.substring(0, f.selectionStart)+"\u10F0"+f.value.substring(f.selectionStart); g++; f.setSelectionRange(g,g); return false;}

  return true;
}