function openImg(src,alt,width,height) {
image = window.open('','image','left=50, top=50, toolbar=no, width='+width+', height='+height+', resizable=no, scrollbars=no, status=no');
image.focus();
image.document.write('ETANCO CZ
');
image.document.close();
}
function checkDemoForm() {
ff = document.getElementById("demoForm");
errorMessage = new String;
errorMessage = '';
if(ff.f_name.value == '') errorMessage += "jméno, společnost\n";
if(ff.f_email.value == '') errorMessage += "e-mail\n";
if(ff.f_phone.value == '') errorMessage += "telefon\n";
if(errorMessage=='') return true;
else {
alert('Chybně vyplněné položky: \n\n'+errorMessage);
return false;
}
}