function PrectiCookie(nazev)
{
    var bites=document.cookie.split(';'); 
    var velikost=bites.length;
    var casti="";
    var navrat="";
    for (x=0;((x<velikost) && (navrat==""));x++) 
	{
	    casti=bites[x].split('=');
	    if (casti[0].substring(0,1)==' ') casti[0]=casti[0].substring(1,casti[0].length);
	    if (casti[0]==nazev) navrat=casti[1];
	}
    return unescape(navrat); 
}

function ZapisCookie(nazev,hodnota,vyprsi) 
{
    var hodiny = 00; 
    var datum = new Date(); 
    var vystup = hodiny - 2; 
    document.cookie=nazev+"="+escape(hodnota)+"; expires=Mon, 01-Jan-2010 "+vystup+":00:00 GMT"; 
}

function smiley(sml)
{
    insertTag(document.frm.text, sml);
}


// IE only - wraps selected text with lft and rgt
  function WrapIE(lft, rgt) {
    strSelection = document.selection.createRange().text;
    if (strSelection!="") {
      document.selection.createRange().text = lft + strSelection + rgt;
    }
  }

// Moz only - wraps selected text with lft and rgt
  function wrapMoz(txtarea, lft, rgt) {
    var selLength = txtarea.textLength;
    var selStart = txtarea.selectionStart;
    var selEnd = txtarea.selectionEnd;
    if (selEnd==1 || selEnd==2) selEnd=selLength;
    var s1 = (txtarea.value).substring(0,selStart);
    var s2 = (txtarea.value).substring(selStart, selEnd)
    var s3 = (txtarea.value).substring(selEnd, selLength);
    txtarea.value = s1 + lft + s2 + rgt + s3;
  }
  
// Chooses technique based on browser
  function wrapTag(txtarea, lft, rgt) {
    lft = unescape(lft);
    rgt = unescape(rgt);
    if (document.all) {
      WrapIE(lft, rgt);
    }
    else if (document.getElementById) {
      wrapMoz(txtarea, lft, rgt);
    }
  }  
  
// IE only - Insert text at caret position or at start of selected text
  function insertIE (txtarea, text) {
    if (txtarea.createTextRange && txtarea.caretPos) { 
      var caretPos = txtarea.caretPos; 
      caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? text+caretPos.text + ' ' : text+caretPos.text;
    } else {
      txtarea.value = txtarea.value + text; 
    }
    return;
  } 

// Moz only - Insert text at caret position or at start of selected text
  function insertMoz(txtarea , lft) {
    var rgt="";
    wrapTag(txtarea, lft, rgt);
    return;
  }

// Switch function based on browser - Insert text at caret position or at start of selected text
  function insertTag(txtarea , lft) {
    if (document.all) {
      insertIE(txtarea, lft);
    }
    else if (document.getElementById) {
      insertMoz(txtarea, lft);
    }
  }

// IE only - stores the current cursor position on any textarea activity
  function storeCaret (txtarea) { 
    if (txtarea.createTextRange) { 
      txtarea.caretPos = document.selection.createRange().duplicate();
    } 
  }




/* obrazky */

function otevri(co, kam, w, h)
  {
    window.open(co,kam,'resizable=1,width='+(w+20)+',height='+(h+20));
    return false;
  }

function playmusic()
{
  window.open("/images/music.swf", "erion_music", "resizable=0,width=150,height=100,status=0");
}

/*
function setSnd(par)
  {
  platnost=new Date();
  platnost.setTime(platnost.getTime()+(10*31536000));
  document.cookie="snd="+par+"; expires="+platnost.toGMTString();
  alert(par+"="+document.cookie.substring(4,5));
  }

  alert("snd="+document.cookie.substring(4,5));

/* flash */

var flashversion = 0;
if (navigator.plugins && navigator.mimeTypes.length)
  {
    var x = navigator.plugins["Shockwave Flash"];
    if(x && x.description)
      {
	var y = x.description;
   	flashversion = y.charAt(y.indexOf('.')-1);
      }
  }
else
  {
    result = false;
    for(var i = 15; i >= 3 && result != true; i--)
      {
	execScript('on error resume next: result = IsObject(CreateObject("ShockwaveFlash.ShockwaveFlash.'+i+'"))','VBScript');
	flashversion = i;
      }
  }
	
function theflash(movie,width,height,text)
{
    if (flashversion > 6)
	{
	    document.write('<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" width="'+width+'" height="'+height+'">\n');
	    document.write('<param name="movie" value="'+movie+'">\n');
	    document.write('<param name="quality" value="high" />\n');
	    document.write('<param name="menu" value="false">\n');
	    document.write('<param name="scale" value="noscale" />\n');
	    document.write('<param name="salign" value="lt" />\n'); 
	    document.write('<param name="wmode" value="transparent">\n');
	    document.write('<embed src="'+movie+'" width="'+width+'" height="'+height+'" quality="high" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" menu="false"  scale="noscale"  salign="lt" wmode="transparent"></embed>\n');
	    document.write('</object>\n');

	    if (text=="kapela")
		document.getElementById('clenove').style.display = "none";
	}
    else
	if (text!="kapela")
	    document.write(text);
  }