function validate_email(field,alerttxt) {
with (field) {
apos=value.indexOf("@")
dotpos=value.lastIndexOf(".")
if (apos < 1||dotpos-apos < 2) 
  {alert(alerttxt);return false}
else {return true}
}
}
function validate_text(field,alerttxt) {
with (field) {
if (value==null||value=="")
  {alert(alerttxt);return false}
else {return true}
}
}
function validate_form(thisform) {
 with (document.getElementById(thisform)) {	 
      if (validate_email(email,"Va rugam sa introduceti o adresa de mail valida!")==false)
  {email.focus();return false}
  else {
    return true;
  }
 }
}