function TogglePreview(LayerNo, What, Eff) {
	var whichLayer = 'sub_' + What + LayerNo;
	var htmlLayer = 'html_' + What + LayerNo;
	var style2;
	Effect.toggle(whichLayer, Eff);
    if (document.getElementById) {
		// this is the way the standards work
        if (document.getElementById(htmlLayer).innerHTML != document.forms["hiddenform"].elements["show_" + What].value) {
			document.getElementById(htmlLayer).innerHTML = document.forms["hiddenform"].elements["show_" + What].value;
		} else {
			document.getElementById(htmlLayer).innerHTML = document.forms["hiddenform"].elements["hide_" + What].value;
		}
	}
}
function fakdealer(){
  if (document.getElementById('showhotline').style.visibility == 'hidden') {
      document.getElementById('showhotline').style.visibility = 'visible';
  } else {
      document.getElementById('showhotline').style.visibility = 'hidden';
  }
}

function trim(str)
{
   return str.replace(/^\s*|\s*$/g,"");
}

function Kontrola(kod,novy)
{
   var a = '';
   
   if (trim(document.forms.formular.login.value) == "")
   {
      document.forms.formular.login.focus();
      a = 'a';
	  alert ("Nezadali jste login");
      return false;
   }
   if (trim(document.forms.formular.heslo.value) == "")
   {
      document.forms.formular.heslo.focus();
      a = 'a';
	  alert ("Nezadali jste heslo");
      return false;
   }
   if (trim(document.forms.formular.heslo2.value) == "")
   {
      document.forms.formular.heslo2.focus();
      a = 'a';
	  alert ("Nezadali jste heslo pro ověření");
      return false;
   }
   if (trim(document.forms.formular.osoba.value) == "")
   {
      document.forms.formular.osoba.focus();
      a = 'a';
	  alert ("Nezadali jste kontaktní osobu");
      return false;
   }
   if (trim(document.forms.formular.email.value) == "")
   {
      document.forms.formular.email.focus();
      a = 'a';
	  alert ("Nezadali jste email");
      return false;
   }
   if (trim(document.forms.formular.fakemail.value) == "")
   {
      document.forms.formular.fakemail.focus();
      a = 'a';
	  alert ("Nezadali jste fakturační email");
      return false;
   }
   if (document.forms.formular.email.value.indexOf("@") == -1)
   {
      document.forms.formular.email.focus();
      a = 'a';
	  alert ("Chybný formát e-mailu");
      return false;
   }
   if (trim(document.forms.formular.kontrola.value) == "")
   {
      document.forms.formular.kontrola.focus();
      a = 'a';
	  alert ("Nevyplnili jste text z obrázku");
      return false;
   }        
   
   
   kod2 = document.getElementById(novy).value;
   kod = kod.toLowerCase();
   kod2 = kod2.toLowerCase();
   
   if(kod!=kod2){
	  a = 'a';
	  alert('Neopsali jste správně text z obrázku');
	  return false;
   }  

   if(a == ""){
	document.getElementById("disab").disabled=true;
    document.body.className='load';
    vytvor = document.createElement('div');
    vytvor.setAttribute('class','loading');
    vytvor.className='loading';
    document.body.appendChild(vytvor);
	return true;
   }
}

function zjisti_login(){

        var http_request = false;
        var string  = document.getElementById('login').value;
        var request = "string="+string;

         if (window.XMLHttpRequest) {
             http_request = new XMLHttpRequest();
         } else if (window.ActiveXObject) {
           try {
           http_request = new ActiveXObject("Msxml2.XMLHTTP");
           } catch (eror) {
           http_request = new ActiveXObject("Microsoft.XMLHTTP");
           }
        }

     http_request.onreadystatechange = function() { zpracuj(http_request); };
     http_request.open('POST', '/prodejonline/je_login.php', true);
     http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
     http_request.send(request);
}

function zpracuj(http_request) {      
	  if (http_request.readyState == 4) {
           if (http_request.status == 200) {
                if(http_request.responseText!=1){
				   document.getElementById('textlogin').innerHTML = 'Login používá jiný uživatel';
				}else{
				   document.getElementById('textlogin').innerHTML = '';
				}
           } else {
              alert('Chyba');
           }
       }
   }
function zmen_action(adresa){
      document.forms['zmena'].action = adresa;
      document.forms['zmena'].submit();
}