function checkData (){
  var str = document.form1.email.value;
  if (window.RegExp) {
    var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
    var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$";
    var reg1 = new RegExp(reg1str);
    var reg2 = new RegExp(reg2str);
    if (!(!reg1.test(str) && reg2.test(str))){
      alert("Va rugam sa introduceti o adresa de email valida!");
      document.form1.email.style.border='1px solid red';
      document.form1.email.focus();
      return false;
    }
  } else {
    ok = "1234567890qwertyuiop[]asdfghjklzxcvbnm.@-_QWERTYUIOPASDFGHJKLZXCVBNM";
    for(i=0; i < e.length ;i++){
      if(ok.indexOf(e.charAt(i))<0){
        alert("Va rugam sa introduceti o adresa de email valida!");
        document.form1.email.style.border='1px solid red';
        document.form1.email.focus();
        return false;
      }
    }
  }

  if (document.form1.nume.value == "") {
    alert("Va rugam introduceti numele dvs!")
    document.form1.nume.focus()
    return false;
  }
  if (document.form1.retea.value == "") {
    alert("Va rugam introduceti reteaua dvs!")
    document.form1.retea.focus()
    return false;
  }
  if (document.form1.localitate.value == "") {
    alert("Va rugam introduceti localitatea dvs!")
    document.form1.localitate.focus()
    return false;
  }
  if (document.form1.cartier.value == "") {
    alert("Va rugam introduceti cartierul dvs!")
    document.form1.cartier.focus()
    return false;
  }
  if (document.form1.mesaj.value == "") {
    alert("Va rugam introduceti mesajul dvs!")
    document.form1.mesaj.focus()
    return false;
  }
}