function MM_CheckFlashVersion(reqVerStr,msg){
  with(navigator){
    var isIE  = (appVersion.indexOf("MSIE") != -1 && userAgent.indexOf("Opera") == -1);
    var isWin = (appVersion.toLowerCase().indexOf("win") != -1);
    if (!isIE || !isWin){  
      var flashVer = -1;
      if (plugins && plugins.length > 0){
        var desc = plugins["Shockwave Flash"] ? plugins["Shockwave Flash"].description : "";
        desc = plugins["Shockwave Flash 2.0"] ? plugins["Shockwave Flash 2.0"].description : desc;
        if (desc == "") flashVer = -1;
        else{
          var descArr = desc.split(" ");
          var tempArrMajor = descArr[2].split(".");
          var verMajor = tempArrMajor[0];
          var tempArrMinor = (descArr[3] != "") ? descArr[3].split("r") : descArr[4].split("r");
          var verMinor = (tempArrMinor[1] > 0) ? tempArrMinor[1] : 0;
          flashVer =  parseFloat(verMajor + "." + verMinor);
        }
      }
      // WebTV has Flash Player 4 or lower -- too low for video
      else if (userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 4.0;

      var verArr = reqVerStr.split(",");
      var reqVer = parseFloat(verArr[0] + "." + verArr[2]);
  
      if (flashVer < reqVer){
        if (confirm(msg))
          window.location = "http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash";
      }
    }
  } 
}

function ShowImg (Img, W, H){
  var Browser = navigator.appName;
  var Version = parseInt(navigator.appVersion);
  if ((Browser == "Netscape" & Version >= 4) ||
      (Browser == "Microsoft Internet Explorer" & Version >= 4)){
    ScrH = screen.height;
    ScrW = screen.width;
  } else {
    ScrH = 0;
    ScrW = 0;
  }

  var BorderW = 1;
  W += 2*BorderW;
  H += 2*BorderW;

  var Position;
  if ((ScrH > 0) && (ScrW > 0)) Position = ",left="+(ScrW - W)/2+",top="+(ScrH-H)/2;
  else Position = "";

  var TmpName= new Date();
  var NewName = "Name_"+TmpName.getTime();
  var Scrollbars = ",scrollbars=no";
  if ((ShowImg.arguments.length>3) && (ShowImg.arguments[3]== true)) Scrollbars = ",scrollbars=yes";

  var NewWin = window.open('', NewName, "toolbar=no,location=no,width="+W+",height="+H+",directories=no,status=no,menubar=no,resizable=no"+Scrollbars+Position);


  if (NewWin && NewWin.document){
    with (NewWin.document) {
      open();
      write('<html><head><title>Velká fotografie</title></head><body style="margin:0px;padding:0px;background-color:#000000;">');
      write('<A href="javascript:close();" title="Kliknutím zavřete"><IMG src="'+
             Img+'" hspace="'+BorderW+'" vspace="'+
             BorderW+'" border="0"></a>');
      write('</body></html>');
      close();
    }
    return (false)
  } else return (true)
}
