/***********************************************
* Cool DHTML tooltip script- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
***********************************************/

var ie=document.all
var ns6=document.getElementById && !document.all
if (ie) {
	var offsetxpoint=5 
	var offsetypoint=20 
}
if (ns6) {
	var offsetxpoint=0 
	var offsetypoint=15 
}
var enabletip=false
var tipobj = ""

function ietruebody(){
	return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function display(what){
	if (ns6||ie){
		if (ie||ns6) 
			tipobj=document.all? document.all[what] : document.getElementById? document.getElementById(what) : ""
		enabletip=true
		return false
	}
}

function positiontip(e){
	if (enabletip){
		var curX=(ns6)?e.pageX : event.clientX + document.body.scrollLeft;
		var curY=(ns6)?e.pageY : event.clientY + document.body.scrollTop;
		//Find out how close the mouse is to the corner of the window
		var rightedge=ie&&!window.opera? ietruebody().clientWidth-event.clientX-offsetxpoint : window.innerWidth-e.clientX-offsetxpoint-20
		var bottomedge=ie&&!window.opera? ietruebody().clientHeight-event.clientY-offsetypoint : window.innerHeight-e.clientY-offsetypoint-20

		var leftedge=(offsetxpoint<0)? offsetxpoint*(-1) : -1000

		//if the horizontal distance isn't enough to accomodate the width of the context menu
		if (rightedge<tipobj.offsetWidth)
			//move the horizontal position of the menu to the left by it's width
			tipobj.style.left=ie? ietruebody().scrollLeft+event.clientX-tipobj.offsetWidth+"px" : window.pageXOffset+e.clientX-tipobj.offsetWidth+"px"
		else if (curX<leftedge)
			tipobj.style.left="5px"
		else
			//position the horizontal position of the menu where the mouse is positioned
			tipobj.style.left=curX+offsetxpoint+"px"

		//same concept with the vertical position
		if (bottomedge<tipobj.offsetHeight)
			tipobj.style.top=ie? ietruebody().scrollTop+event.clientY-tipobj.offsetHeight-offsetypoint+"px" : window.pageYOffset+e.clientY-tipobj.offsetHeight-offsetypoint+"px"
		else
    tipobj.style.top=curY+offsetypoint+"px"
		tipobj.style.visibility="visible"
	}
}

function hide(){
	if (ns6||ie){
		enabletip=false
		tipobj.style.visibility="hidden"
	}
}

document.onmousemove=positiontip


function okno(page,height)
{
 if(height == '') height = '200'
 return window.open(page,"","width=500,height="+height+",menubar=no,directories=no,toolbar=no,location=no,status=no,scrollbars=yes,resizable=no,left=200,top=200");
}

function change(trat) {
	return window.location='/?trat='+trat;
}

function change2(stanice) {
	return window.location='/?stanice='+stanice;
}

function change_archiv(datum, vlak) {
  if(datum == '') return window.location='/vlak/'+vlak+'/';
  else return window.location='/vlak/'+vlak+'/archiv/'+datum;
}



var open_b = true;
//function banner() {
  /*var ban = document.getElementById('banner');
  ban.style.display = 'block';
  left = (screen.availWidth-ban.offsetWidth)/2;
  if(left < 0) left = 0;
  s_top = document.body.scrollTop;
  if(s_top == 0) s_top = document.documentElement.scrollTop;
  i_top = s_top+((screen.availHeight-ban.offsetHeight-100)/2);
  if(i_top < 0) i_top = 0;
  ban.style.left = left+'px';
  ban.style.top = i_top+'px';*/
  //document.getElementById('xmapka').src='/mapka_x.php';
//}

function kontrola() {
  var stanice = trim(document.getElementById('bstanice').value);
  var pozice = trim(document.getElementById('bpozice').value);
  var ucel = trim(document.getElementById('bucel').value);
  
  if(stanice == '') {
    document.getElementById('errstanice').style.display = 'block';
    return false;
  } else document.getElementById('errstanice').style.display = 'none';

  if(pozice == '') {
    document.getElementById('errpozice').style.display = 'block';
    return false;
  } else document.getElementById('errpozice').style.display = 'none';

  if(ucel == '') {
    document.getElementById('errucel').style.display = 'block';
    return false;
  } else document.getElementById('errucel').style.display = 'none';
  
}

function trim (str) {
	str = str.replace(/^\s+/, '');
	for (var i = str.length - 1; i > 0; i--) {
		if (/\S/.test(str.charAt(i))) {
			str = str.substring(0, i + 1);
			break;
		}
	}
	return str;
}