//Begin preloader

image1 = new Image();
image1.src = "/css/img/btn_info_over.jpg";

image2 = new Image();
image2.src = "/css/img/btn_portfolio_over.jpg";

image3 = new Image();
image3.src = "/css/img/btn_cenik_over.jpg";

image4 = new Image();
image4.src = "/css/img/btn_kontakt_over.jpg";

// End preloader -->

//form check function
function checkfrmcontact(){
    var frmContact = document.getElementById('frmContact');
    var numericExpression = /^[0-9]+$/;
    var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
    if(frmContact.senderName.value.length > 4){
        frmContact.senderName.style.borderColor = '#000000';
        if(frmContact.senderContact.value.match(numericExpression) || frmContact.senderContact.value.match(emailExp)){
            frmContact.senderContact.style.borderColor = '#000000';
            if(frmContact.senderQuest.value.length > 1){
                frmContact.senderQuest.style.borderColor = '#000000';
                return true;    
            }else{
                frmContact.senderQuest.style.borderColor = '#FF0000';
                frmContact.senderQuest.focus();
                alert('Napište Váš dotaz.');
                return false;
            }
        }else{
            frmContact.senderContact.style.borderColor = '#FF0000';
            frmContact.senderContact.focus();
            alert('Vyplňte kontakt.');
            return false;
        }
    }else{
        frmContact.senderName.style.borderColor = '#FF0000';
        frmContact.senderName.focus();
        alert('Vyplňte Vaše jméno.');
        return false;
    }
}

function checkfrmterm(){ 
    var frmTerm = document.getElementById('frmTerm');
    var numericExpression = /^[0-9]+$/;
    var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
    if(frmTerm.termName.value.length > 4){
        frmTerm.termName.style.borderColor = '#000000';
        if(frmTerm.termContact.value.match(numericExpression) || frmTerm.termContact.value.match(emailExp)){
            frmTerm.termContact.style.borderColor = '#000000';
            if(frmTerm.termDate.value.length > 5){
                frmTerm.termDate.style.borderColor = '#000000';
                if(frmTerm.termPlace.value.length > 1){
                    frmTerm.termPlace.style.borderColor = '#000000';
                    document.forms.frmTerm.submit();
                    return true;
                }else{
                    frmTerm.termPlace.style.borderColor = '#FF0000';
                    frmTerm.termPlace.focus();
                    alert('Vyplňte místo konání.');
                    return false;
                }
            }else{
                frmTerm.termDate.style.borderColor = '#FF0000';
                frmTerm.termDate.focus();
                alert('Vyplňte datum.');
                return false;
            }
        }else{
            frmTerm.termContact.style.borderColor = '#FF0000';
            frmTerm.termContact.focus();
            alert('Vyplňte Váš email nebo telefon.');
            return false;
        }
    }else{
        frmTerm.termName.style.borderColor = '#FF0000';
        frmTerm.termName.focus();
        alert('Vyplňte Vaše jméno.');
        return false;
    }
    
}

//foto preview
function fotopreview(tsrc){
    var projector = document.getElementById('projector');
    var preview = document.getElementById('fotoprev');
    var detail = document.getElementById('fotodetail');
    
    projector.src=tsrc.replace('/portfolio/','/portfolio/orig/');

    if (preview.className=='fotoprev_show'){
        preview.className='fotoprev_hide';
        detail.className='fotodetail_hide';
        
    }else{
        preview.className='fotoprev_show';
        detail.className='fotodetail_show';
    }
    //return true;
}
//foto preview prev
function fotopreviewprev(){
    var projector = document.getElementById('projector');
    nextid = projector.src.replace('http://www.kadlecova.com/css/img/foto/portfolio/orig/','');
    nextid = nextid.replace('.jpg','')
    nextid = Number(nextid);
    nextid--;
    if (nextid < 1) {
        nextid++;
    }
    projector.src = '/css/img/foto/portfolio/orig/'+nextid+'.jpg';

    //return true;
}
//foto preview next
function fotopreviewnext(){
    var projector = document.getElementById('projector');
    nextid = projector.src.replace('http://www.kadlecova.com/css/img/foto/portfolio/orig/','');
    nextid = nextid.replace('.jpg','')
    nextid = Number(nextid);
    nextid++;
    if (nextid > 12) {
        nextid--;
    }
    projector.src = '/css/img/foto/portfolio/orig/'+nextid+'.jpg';

    //return true;
}