// JavaScript Document

function changeadr(id) {
  var menu=document.getElementById(id);
  menu.style.Color="gray";
  menu.style.backgroundColor="silver";
  menu.style.fontWeight="bolder";
  for(var i=1;i<=3;i++) {
    if (i != id) {
      menu=document.getElementById(i);
      menu.style.Color="silver";
      menu.style.backgroundColor="white";
      menu.style.fontWeight="normal";
    }
  }
  var hlavicka = document.getElementsByTagName('head')[0];
  var dataloader = document.getElementById('scriptLoader');
  if (dataloader) hlavicka.removeChild(dataloader);
  var nick=document.getElementById('nick_name');
  var akce=document.getElementById('post_akce');
  script = document.createElement('script');
  script.id = 'scriptLoader';
  script.src = 'system/adress.php?adr='+id+"&nick="+nick.innerHTML+"&akce="+akce.value;

  x = document.getElementsByTagName('head')[0];
  x.appendChild(script);
  return false;
  //menu.innerHTML="TADY";
}

function nactiadr(text) {
  var name=document.getElementById("adr");
  name.innerHTML=text;
}

function poslat_komu(name) {
  var komu = document.getElementById("post_komu");
  komu.value = name.innerHTML;
}

function stahnivzkazy(id) {
  var hlavicka = document.getElementsByTagName('head')[0];
  var dataloader = document.getElementById('scriptLoader');
  if (dataloader) hlavicka.removeChild(dataloader);
  var akce=document.getElementById('post_akce');
  script = document.createElement('script');
  script.id = 'scriptLoader';
  script.src = 'system/smazatvzkaz.php?id_zpravy='+id+"&akce="+akce.value;

  x = document.getElementsByTagName('head')[0];
  x.appendChild(script);
  return false;
}

function nactivzkazy(text) {
  alert(text);
  var vzkaz = document.getElementById("post_table");
  alert(text);
  vzkaz.innerHTML = text;
}

var y=-5;
var odpocet=60;
var adr;
var dalsi=false;
 
function init() {
  loop=true;
  setTimeout("down(105)",6000);
}
 
function scrolluj(speed){  
  	loop=true; 
		if(speed>0) { down(speed); } 
		else { up(speed); } 
} 

function down(posun) {
  adr=document.getElementById("adr");
  var x=get_current_height(adr);
  opacity(0,false);
  if (y < -x+100) { y=-5; }
  else
  { y = y-posun; } 
  adr.style.top = y+"px";
  opacity(0,true)
  setTimeout("down(100)",6000);
} 
 
function up(posun) {
  var adr=document.getElementById("adr");
  if (y>=0) { y=0 }
  else { y = y-posun; }
  adr.style.top = y+"px";
  if(loop) setTimeout("up("+posun+")",odpocet);
} 

function opacity(act,pust) {
  adr.style.opacity= act/100;
  adr.style.filter="alpha(opacity="+act+")";
  act=act+2;
  if(pust && act<=100) setTimeout("opacity("+act+","+pust+")",14);
}

function zastav(){ 
    loop=false;
}
 
function get_current_height($element)
{
var ee;
try
{
var $cs=document.defaultView.getComputedStyle($element,'');
$val=style2px($cs.getPropertyValue("height"));
}
catch(ee)
{
$val=($element.offsetHeight);
if($val<0)$val=0;
}
return $val;
}