function addUploadFields(id, amount, clas) { if (!id) { id = 'uploadfilebox';}
var el = $(id); var span = el.getElementsByTagName('span')[0]; if ('none' == span.style.display) { span.style.display = 'inline';} else { var newBox = span.cloneNode(true); newBox.getElementsByTagName('input')[0].value = ''; el.appendChild(newBox); var divs = document.getElementsByTagName('input'); var skaicius=0
for(var no=0;no<divs.length;no++){ if(divs[no].className==clas){ skaicius++;}
}
if (skaicius>=amount) document.getElementById("upload_"+clas).setAttribute('disabled',true);}
}
function removeUploadField(element, id, clas, amount) { if (!id) { id = 'uploadfilebox';}
var el = $(id); var span = el.getElementsByTagName('span'); if (1 == span.length) { } else { var divs = document.getElementsByTagName('input'); var skaicius=0
for(var no=0;no<divs.length;no++){ if(divs[no].className==clas){ skaicius++;}
}
el.removeChild(element.parentNode); if (skaicius<=amount) document.getElementById("upload_"+clas).removeAttribute('disabled');}
}