function isEMailAddr(elem) {
    var str = elem.value;
    var re = /^[\w-]+(\.[\w-]+)*@([\w-]+\.)+[a-zA-Z]{2,7}$/;
    if (!str.match(re)) {
        alert("Verify the e-mail address format.");
        elem.focus();
        return false;
    } else {
        return true;
    }
}





function validateForm()
{
 if (document.form1.Name.value==""){
  alert("Please enter your name...");
  document.form1.Name.focus();
  return false;
 }

 if (document.form1.Email.value==""){
  alert("Please enter your email...");
  document.form1.Email.focus();
  return false;
 }

 if(!isEMailAddr(document.form1.Email)) return false;

 if (document.form1.Country.value==""){
  alert("Please enter your Country...");
  document.form1.Country.focus();
  return false;
 }

 if (document.form1.Comment.value==""){
  alert("Please enter your message ...");
  document.form1.Comment.focus();
  return false;
 }

 return TRUE;

}