// JavaScript Document

var tabdia = null;
var tab_h = null;
var tab_b = null;
var th = null;
var tb = null;

function InitTabs(object_id, shownum) {
	tabdia = id(object_id);
	tab_h = DOM_firstChild(tabdia);
//	alert(tab_h.className);
	th = tab_h.getElementsByTagName('a');	
	tab_b = DOM_next(tab_h);
	tb = tab_b.getElementsByTagName('div');
	if(!isNaN(shownum)) ShowTab(shownum);
}

function ChangeTab(source, num) {
	SetActiveTab(source);	
	ShowTab(num);
}


function SetActiveTab(tab) {
	for(i=0;i<th.length;i++) {
		th[i].className = '';
	}
	tab.className = 'seltab';
}

function ShowTab(num) {
	for(i=0;i<tb.length;i++) {
		if(tb[i].id != 'tab_'+num) hide(tb[i]);
	}
	show(id('tab_'+num));
}

/*
 * $Id: k2ScrollCaller.js,v 1.3 2006/09/18 11:05:11 david Exp $
 */

var minHeight = 500;
var maxIterations = 100;
var iterationDelay = 100; // ms

function resizeIFrame(frameId, holderId, resizeOnClick, iteration )
{
  // ulozim si scroll, u letenek pri kliku se funkce vola znovu a scrool se nastavil na max
  var ScrollTop = 0;
  if( typeof( window.pageYOffset ) == 'number' ) {
    //Netscape compliant
    ScrollTop = window.pageYOffset;
  } else if( document.body && ( document.body.scrollLeft || document.body.scrollTop ) ) {
    //DOM compliant
    ScrollTop = document.body.scrollTop;
  } else if( document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop ) ) {
    //IE6 standards compliant mode
    ScrollTop = document.documentElement.scrollTop;
  }

	if (holderId != '')
	{
	  frameBody = frames[frameId].document.getElementById(holderId);
	}
	else
	{
		frameBody = frames[frameId].document.getElementsByTagName('body').item(0);
	}
		
  	frame = document.getElementById(frameId);
  
  	alert(framebody.height());
  	
//	bd = document.getElementsByTagName('body')[0];
  
//  alert(frameBody + "\n" + frameBody.scrollHeight + "\n" + bd.scrollHeight);
  
  // nastavuji minimalni vysku, protoze kdyz se iframe roztahl tak uz nesel zmensit :(, ale nastavuji jen poprve, pri kliku v iframe a naslednem roztazenim ee.
//  return;
  if(ScrollTop == 0)
	  frame.setAttribute('height', minHeight);
  
  if (frameBody.scrollHeight > 0)
  {
    frame.setAttribute('height', frameBody.scrollHeight);
		window.scrollTo(0,ScrollTop);
   	
    // aby se zavolala tahle funkce pokazde kdyz clovek klikne v IFRAME, u letenke to potreba
    if('undefined' != typeof resizeOnClick && resizeOnClick == true ) {
   		//frameBody = frames[frameId].document.getElementsByTagName('body').item(0).setAttribute('onClick', 'parent.resizeIFrame("' + frameId + '", "' + holderId + '", false, ' + (++iteration) + ')');
   		frameBody = frames[frameId].document.getElementsByTagName('body').item(0).onclick = function() { 
   			parent.resizeIFrame(frameId, holderId, false, (++iteration));
			}; 
    }
  }
  else if (iteration < maxIterations)
  {
    setTimeout('resizeIFrame("' + frameId + '", "' + holderId + '", '+ resizeOnClick+ ', ' + (++iteration) + ')', iterationDelay);
  }
  
}
/*
function scrollCaller(frameId)
{
//	alert('jedeme');
//	window.scrollTo(0,0);
	var frame = getElement(frameId);
    var frameDoc = getIFrameDocument(frameId);
    frame.height = frameDoc.body.offsetHeight;
	
}
*/
function getElement(aID) {
	return (document.getElementById) ?
	    document.getElementById(aID) : document.all[aID];
}

function getIFrameDocument(aID) { 
    var rv = null; 
    var frame=getElement(aID);
    if (frame.contentDocument)
        rv = frame.contentDocument;
    else // bad Internet Explorer  ;)
        rv = document.frames[aID].document;
    return rv;
}