function fit_window(){
  pictureWidth = objGet('pic').width;
  pictureHeight = objGet('pic').height;
  window.resizeTo(pictureWidth+60, pictureHeight+96);  
}
function checkPayment(){
  f=objGet('order_form');
  if(f.delivery.value=="personal pick up"){
    f.payment.selectedIndex = 3;
  }
  else return true;  
}


function isset(varname)  {
  if(typeof( window[ varname ] ) != "undefined") return true;
  else return false;
}

function openStringPopup(val){
  if(val != 0){
    url = '/popup_detail.php?product='+val;
    win = window.open(url, 'String', 'resizable=1,top=20,left=20,menubar=0,scrollbars=0,width=540,height=480' );
    win.focus();
  }
  return false;
}

function check_payment(){
  f=objGet('order_form');
  if(isset('country'))
    country_id=country;
  else 
    country_id=f.country.value;
  if(f.payment.value=="cash on delivery"){
    if(country_id==12) return true;
    else{
      alert("Cash on delivary is available only for Austria users.");
      return false;
    }
  }
  else{
    if(f.delivery.value == 'Post' && f.payment.value == 'cash'){
      alert("Cash is available only in case of personal pick up.");
      return false
    }
    else return true;
  } 
}

function validate_order(){
  f=objGet('order_form');
  if(regUser==true){
    if(objGet('agreement').checked==true)
      objGet('submit').disabled=false;
    else
      objGet('submit').disabled=true;
  }
  else{
    if(objGet('address_match').checked==true){
      f.s_name.value=f.name.value + ' ' + f.surname.value; objGet('s_name').readOnly=true;
      f.s_address.value=f.address.value; objGet('s_address').readOnly=true;
      f.s_city.value=f.city.value; objGet('s_city').readOnly=true;
      f.s_post_code.value=f.post_code.value; objGet('s_post_code').readOnly=true;
    }
    else{
      objGet('s_name').readOnly=false;
      objGet('s_address').readOnly=false;
      objGet('s_city').readOnly=false;
      objGet('s_post_code').readOnly=false;
    }
  
    if(f.name.value=="" || f.surname.value=="" || f.address.value=="" 
    || f.city.value=="" || f.post_code.value==""
    || wrong_mail_address(f.email.value) || f.phone.value==""  || objGet('agreement').checked==false
    || ( !objGet('address_match').checked && ( f.s_address.value=="" 
    || f.s_city.value=="" || f.s_post_code.value=="" ))
    ) objGet('submit').disabled=true;
    else objGet('submit').disabled=false;
  } 
  
  
  
}

function wrong_mail_address(adresa){
  var error=false;
  var pozice_zavinace = adresa.indexOf("@");
    if (pozice_zavinace < 0)
        error=true;
    var cast_pred_zavinacem = adresa.substring(0,pozice_zavinace);
    var cast_po_zavinaci = adresa.substring(pozice_zavinace+1,adresa.length);
    if (cast_po_zavinaci.indexOf("@") >= 0)
        error=true;
    if (cast_pred_zavinacem.length <= 0)
        error=true;
    if (cast_po_zavinaci.length <= 0)
        error=true;

    return error;
}

function objGet(id){
   if(Boolean(document.getElementById))
      return document.getElementById(id);
   else if(Boolean(document.all))
      return eval('document.all.'+id);
   else
      return eval('document.'+id);
}

function openImage(file){
  url = '/en/photo.php?file='+escape(file);
  win = window.open(url, 'image', 'resizable=1,top=20,left=20,menubar=0,scrollbars=1,width=' + 300 + ',height=' + 220 );
  win.focus();
}

function switchImg(url){
  objGet('main-pic').src=url;
}

function clearPassword(){
  x=objGet('login_form');
  if(x.password.value=='Put password...') x.password.value='';
}

function clearEmail(){
  x=objGet('login_form');
  if(x.login.value=='Put e-mail...') x.login.value='';
}

function clearNewsletter(){
  x=objGet('newsletter-box');
  if(x.value=='Put Your e-mail...') x.value='';
}

function clearkeywords(){
  x=objGet('search');
  if(x.keywords.value=='Enter keywords...') x.keywords.value='';
}

function validateReg(edit){
  form=objGet('reg_form');
  if(objGet('customer_btn').checked){   // ------- koncovy zakaznik -----
    if(form.name.value=="" || form.surname.value==""
       || form.address.value=="" || form.city.value==""
       || form.post_code.value==""  || form.company_phone.value==""
       || wrong_mail_address(form.company_email.value) || (form.password.value=="" && !edit)) 
      objGet('submit').disabled=true;
      
    else objGet('submit').disabled=false;
  }
  else{                                 // ------- firma -----
    if(form.company_name.value=="" || form.country.value=="" 
      || form.address.value=="" || form.city.value==""
      || form.post_code.value=="" || form.company_phone.value==""
      || wrong_mail_address(form.company_email.value) || (form.country.value=='48' && form.ico.value=="")
      || (form.country.value!='48' && form.vat.value=="") || form.contact_name.value==""
      || form.contact_surname.value=="" || form.contact_phone.value==""
      || wrong_mail_address(form.contact_email.value)
      || (form.password.value=="" && !edit)){
      objGet('submit').disabled=true;
    }
    else objGet('submit').disabled=false;
  }
}

function updateRegForm(){
  if(objGet('customer_btn').checked){   // ------- koncovy zakaznik -----
    objGet('end-user').style.display = 'block';
    objGet('company-box').style.display = 'none';
  }
  else{                            // ------- firma -----
    objGet('end-user').style.display = 'none';
    objGet('company-box').style.display = 'block';
  }
  validateReg();
}

// function updateRegForm(){
//   if(objGet('customer_btn').checked){   // ------- koncovy zakaznik -----
//     objGet('contact_person').style.display='none';
//     objGet('company_name').style.display='none';
//     objGet('fax').style.display='none';
//     objGet('NOCZ').style.display='none';
//     objGet('CZ').style.display='none';
//     
//     objGet('name').style.display='block';
//     objGet('surname').style.display='block';
//   }
//   else{                            // ------- firma -----
//     objGet('contact_person').style.display='block';
//     objGet('company_name').style.display='block';
//     objGet('fax').style.display='block';
//     
//     if(objGet('country').value=='48'){
//       objGet('CZ').style.display='block';
//       objGet('NOCZ').style.display='none';
//     }
//     else{
//       objGet('NOCZ').style.display='block';
//       objGet('CZ').style.display='none';
//     }
//     
//     objGet('name').style.display='none';
//     objGet('surname').style.display='none';
//   }
//   validateReg();
// }