function setSelectionRange(input,selectionStart,selectionEnd) {
	if(input.setSelectionRange) {
		input.focus();
		input.setSelectionRange(selectionStart,selectionEnd);
	}
	else if(input.createTextRange) {
		var range=input.createTextRange();
		range.collapse(true);
		range.moveEnd('character',selectionEnd);
		range.moveStart('character',selectionStart);
		range.select();
	}
}
function uprava(textpre,textpost,pole) { 
	var ele;
	if(ele=document.getElementById(pole)) {
		if(ele.setSelectionRange) {
			var start=ele.selectionStart;
			var end=ele.selectionEnd; 
			ele.value=ele.value.substring(0,start)+textpre+ele.value.substring(start,end)+textpost+ele.value.substring(end);
			setSelectionRange(ele,start,end+textpre.length+textpost.length);
		}
		else if(document.selection) {
			ele.focus();
			document.selection.createRange().text=textpre+document.selection.createRange().text+textpost;
		}
	}
}
var ajax_obj=new Array();
function ajax_otevrit(obj,skript,typ,msg,akce) {
  var mozno=1;
  if (window.XMLHttpRequest) {
	 ajax_obj[obj]=new XMLHttpRequest();
  }else if(window.ActiveXObject) {
	 try {
	   ajax_obj[obj]=new ActiveXObject('Microsoft.XMLHTTP');
	 }catch(e) {
	   ajax_obj[obj]=new ActiveXObject('Msxml2.XMLHTTP');
	 }
  }else mozno=0;
  if (mozno) {
    var url=skript+'?'+new Date().getTime();
    ajax_obj[obj].open("POST", url, true);
    ajax_obj[obj].setRequestHeader('x-deb-js-akce', akce);
    ajax_obj[obj].setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
    ajax_obj[obj].onreadystatechange=function() {ajax_otevrit_req(obj, typ);};
    ajax_obj[obj].send(msg);
  }
}
function nahoru(id){
  $('html,body').animate({scrollTop: $("#"+id).offset().top},'slow');
}
function focusout(){
  document.getElementById("top_center").focus();
}
function ajax_otevrit_req(obj, typ) {
  if (ajax_obj[obj].readyState==4) {
    if(ajax_obj[obj].status==200) {
      if (ajax_obj[obj].responseText=='<prava>') {
        alert('K této akci nemáte dostatečná oprávnění.');
      }else if (ajax_obj[obj].responseText=='<exist>') {
        alert('Volaný cíl neexistuje.');
      }else if (ajax_obj[obj].responseText=='<voted>') {
        alert('V tomto hlasování jste již hlasoval(a).');
      }else {
        var misto=document.getElementById(obj);
        var vystup=ajax_obj[obj].responseText;
        if (typ=='innerHTML') {
          misto.innerHTML=vystup;
        }else if (typ=='value') {
          misto.value=vystup;
        }else if (typ=='iframe') {
          window.frames[0].document.getElementById(obj).innerHTML=vystup;
        }else if (typ=='nickVolny') {
          if(vystup=="1"){
            misto.innerHTML='<img src="/obr/ikonky/okay.png" alt="OK"> Přezdívka je volná.';
          }else {
            misto.innerHTML='<img src="/obr/ikonky/nope.png" alt="NO"> Účet s touto přezdívkou již existuje.';
          }
        }
      }
    }
  }
}
var Base64 = {_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",decode : function (input) {var output = "";var chr1, chr2, chr3;var enc1, enc2, enc3, enc4;var i = 0;input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");while (i < input.length) {enc1 = this._keyStr.indexOf(input.charAt(i++));enc2 = this._keyStr.indexOf(input.charAt(i++));enc3 = this._keyStr.indexOf(input.charAt(i++));enc4 = this._keyStr.indexOf(input.charAt(i++));chr1 = (enc1 << 2) | (enc2 >> 4);chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);chr3 = ((enc3 & 3) << 6) | enc4;output = output + String.fromCharCode(chr1);if (enc3 != 64) {output = output + String.fromCharCode(chr2);}if (enc4 != 64) {output = output + String.fromCharCode(chr3);}}output = Base64._utf8_decode(output);return output;},_utf8_decode : function (utftext) {var string = "";var i = 0;var c = c1 = c2 = 0;while ( i < utftext.length ) {c = utftext.charCodeAt(i);if (c < 128) {string += String.fromCharCode(c);i++;}else if((c > 191) && (c < 224)) {c2 = utftext.charCodeAt(i+1);string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));i += 2;}else {c2 = utftext.charCodeAt(i+1);c3 = utftext.charCodeAt(i+2);string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));i += 3;}}return string;}}