
// menu functions

var CurrSel = -1;
var CurrSubSel = -1;


ImCarecka1 = new Image;
ImCarecka1.src = "../common/icons/carecka1s.gif";

ImCarecka2 = new Image;
ImCarecka2.src = "../common/icons/carecka3s.gif";


function OutMenu(i) {
 
 if (CurrSel != i)
	return;
 
 document["sel_"+CurrSel+"l"].src = ImCarecka2.src;
 document["sel_"+CurrSel+"r"].src = ImCarecka2.src;

 CurrSel = -1;
}

function OverMenu(i) {

 if (CurrSel != -1)
   OutMenu(CurrSel);
  
 CurrSel = i;
 document["sel_"+CurrSel+"l"].src = ImCarecka1.src;
 document["sel_"+CurrSel+"r"].src = ImCarecka1.src;
}



function OutSubMenu(i,j) {

 if (CurrSubSel != -1) {
 document["subsel_" + CurrSubSel + "l"].src = ImCarecka2.src;
 document["subsel_" + CurrSubSel + "r"].src = ImCarecka2.src;
 CurrSubSel = -1;
 }
}

function OverSubMenu(i,j) {

 if (CurrSel != i)
   OverMenu(i);

 if (CurrSubSel != -1)
   OutSubMenu(CurrSubSel);

 CurrSubSel = j;
 document["subsel_" + j + "l"].src = ImCarecka1.src;
 document["subsel_" + j + "r"].src = ImCarecka1.src;
}


// animation functions

// Create the browser object.
var browser = new Object();

// Figure out the browser major version.
browser.version = parseInt(navigator.appVersion);

// Now figure out if the browser is from one of the two
// major browser vendors. Start by assuming it is not.
browser.isNavigator = false;
browser.isIE = false;

if (navigator.appName.indexOf("Netscape") != -1) 
   browser.isNavigator = true;
else if (navigator.appName.indexOf("Microsoft") != -1)
   browser.isIE = true;


function ToggleVisibility(id) {
  if (!browser.isIE) {
    if ( document[id].visibility == "show" )
      document[id].visibility = "hide";
    else 
      document[id].visibility = "show";
  } else {
    if ( document.all[id].style.visibility == "visible" )
      document.all[id].style.visibility = "hidden";
    else 
      document.all[id].style.visibility = "visible";
  }
}

function MoveBy(id,x,y) {
  if (!browser.isIE) {
    document[id].left += x;
    document[id].top += y;
  } else {
    document.all[id].style.pixelLeft += x;
    document.all[id].style.pixelTop += y;
  }
}

function MoveTo(id,x,y) {
  if (!browser.isIE) {
    document[id].left = x;
    document[id].top = y;
  } else {
    document.all[id].style.pixelLeft = x;
    document.all[id].style.pixelTop = y;
  }
}


var TickNum = 0;
var TickMax = 140;
var Amplitude = 8;
var xOffset = 0;
var yOffset = 35;

function Tick()
{

  if (browser.version < 4)
    return;
  
  if (TickNum == 0) {
    ToggleVisibility('layer1');
    ToggleVisibility('layer2');
  }
  
  var x = TickNum*8;
  var y = Amplitude + Amplitude*Math.sin(TickNum/TickMax*12*3.14159);
  MoveTo('layer1', x + xOffset, yOffset + y + 5);
  MoveTo('layer2', 1000 - x + xOffset, yOffset + 2*Amplitude - y);
  
  TickNum++;
  if (TickNum < TickMax) {
    timer1 = setTimeout("Tick()", 60);
  } else {
    TickNum = 0;
    timer1 = setTimeout("Tick()", 6000);
    ToggleVisibility('layer1');
    ToggleVisibility('layer2');
  }
    
}


function ShowImg(Img, W, H, C)
{
  // Zjistí rozlišení monitoru (velikost obrazovky)
  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;
      }

  // Vypočítání správné velikosti a souřadnic pozice nového okna
  var BorderW = 1;
  W += 2*BorderW;
  H += 2*BorderW;
  var Position;
  if ((ScrH > 0) && (ScrW > 0))
      Position = ",left="+(ScrW-W)/2+",top="+(ScrH-H+80)/2;
  else
      Position = "";

  // Vytvoření nového okna
  var NewWin = window.open("", "",
      "toolbar=no,location=no,width="+W+",height="+H+
      ",directories=no,status=no,menubar=no,"+
      "resizable=no,scrollbars=no"+
       Position);

  // Naplnění - zapsání zdrojového kódu nového okna
  with (NewWin.document)
  {
     write("<HTML><HEAD><TITLE>Kliknutím zavřete/Click on image to close this window"+
                "</TITLE></HEAD>");
     write('<BODY BgColor="white" Text="black"'+
                ' TopMargin="0" LeftMargin="0">');
     write('<A Href="javascript:close();">'+
    		   '<IMG Src="'+Img+'" HSpace="'+BorderW+'" VSpace="'+BorderW+'" Border="0" alt="'+C+'">');
     write("</BODY></HTML>");
     close();
  }

} //konec funkce ShowImg 



