function setFocus() {
  document.loginForm.usrname.select();
	document.loginForm.usrname.focus();
}

function vlozHTMLTag(tagPred, tagZa){
  var text = document.forms[0].text.value;
  var delkaTextu = text.length;
  var vybrano = getSel();
  var iTextPred = text.indexOf(vybrano);
  var iTextZa = text.lastIndexOf(vybrano) + vybrano.length;
  var textPred = text.substring(0, iTextPred);
  var textZa = text.substring(iTextZa, delkaTextu);
  
  document.forms[0].text.value = textPred + tagPred + vybrano + tagZa + textZa;
}

function getSel(){
	var txt = '';
	//var foundIn = '';
	if (window.getSelection){
		txt = window.getSelection();
		//foundIn = 'window.getSelection()';
	}
	else if (document.getSelection){
		txt = document.getSelection();
		//foundIn = 'document.getSelection()';
	}
	else if (document.selection){
		txt = document.selection.createRange().text;
		//foundIn = 'document.selection.createRange()';
	}
  else
    return "";
	
  //document.forms[0].selectedtext.value = 'Found in: ' + foundIn + '\n' + txt;
  return txt;
}

function smazTextovePole(){
  document.getElementById('wysiwyg_hidden').value="";
  document.nova.wysiwyg_hidden.value = "";
  document.nova.text.value = "";
}

function AddFavorite(linkObj,addUrl,addTitle){
  if (document.all && !window.opera){
    window.external.AddFavorite(addUrl,addTitle);
    return false;
  } else if (window.opera && window.print){
    linkObj.title = addTitle;
    return true;
  } else if ((typeof window.sidebar == 'object') && (typeof window.sidebar.addPanel == 'function')){
    if (window.confirm('Přidat oblíbenou stránku jako nový panel?')){
      window.sidebar.addPanel(addTitle,addUrl,'');
      return false;
    }
  }
  window.alert('Po potvrzení stiskněte CTRL-D,\nstránka bude přidána k vašim oblíbeným odkazům.');
  return false;
}