function getObj(nm) {
 var obj;

 if (document.getElementById(nm)) {
  obj = document.getElementById(nm);
 } else {
  obj = document.all(nm);
 }

 return obj;
}

function checkInput(fNm,eNm,len) {
  if (!len) { len = 2; }

  if (document.forms[fNm].elements[eNm].value.length < len) {
    getObj(eNm+'Txt').style.color = '#FF8585';
    return 1;
  } else {
    getObj(eNm+'Txt').style.color = '#F9F9E9';
    return 0;
  }
}

function changeClassTxt(Elem, myClass, myTxt) {
  var elem;

  if(document.getElementById) {
    var elem = document.getElementById(Elem);
  } else if (document.all){
    var elem = document.all[Elem];
  }

	if(elem) {
    elem.className = myClass;
    elem.innerHTML = myTxt;
  }
}

function checkMailForm() {
  err    = 0;
  formNm = 'mail';

  err += checkInput(formNm,'m_name',6);
  err += checkInput(formNm,'m_mail',6);
  err += checkInput(formNm,'m_info',8);

  if (err>0) {
    changeClassTxt('mc1','warn','please fill out all fields');
  } else {
    document.forms[formNm].submit();
  }
  
  return false;
}