// Checks to see if email address is 'valid'
function notValidEmail( str ){
    mailRE = new RegExp( );
    mailRE.compile( '^[._a-z0-9-]+@[.a-z0-9-]+[.]{1}[a-z]{2,4}$', 'gi' );
    return !(mailRE.test( str.value ));
}


// Checks to see if form element is empty
function checkform( form )
{
  if (form.fname.value == "") {
                alert("Please enter your Name." );
                form.fname.focus();
                return false ;
                }
  else if( notValidEmail( form.femail ) ){
                alert( 'Please enter a valid e-mail address.' );
                form.femail.focus();
                return false;
                }  
  else if (form.fsubject.value == "") {
                alert("Please enter your feedback Subject or title." );
                form.fsubject.focus();
                return false ;
                }
  else if (form.fmessage.value == "") {
                alert("Please enter your Message." );
                form.fmessage.focus();
                return false ;
                }
  else if (form.tCode.value == "") {
                alert("Please enter the Code." );
                form.tCode.focus();
                return false ;
                }

  else {
                return true ;
                }
}