function trimTxt(s) {
	while (s.substring(0,1) == ' ') {
		s = s.substring(1,s.length);
	}
	while (s.substring(s.length-1,s.length) == ' ') {
		s = s.substring(0,s.length-1);
	}
	return s;
}

/* 1.1.2: Fixed a bug where trailing . in e-mail address was passing
           (the bug is actually in the weak regexp engine of the browser; I
           simplified the regexps to make it work).
  1.1.1: Removed restriction that countries must be preceded by a domain,
           so abc@host.uk is now legal.  However, there's still the
           restriction that an address must end in a two or three letter
           word.
    1.1: Rewrote most of the function to conform more closely to RFC 822.
    1.0: Original  */

function emailCheck (emailStr) {
	/* The following pattern is used to check if the entered e-mail address
	  fits the user@domain format.  It also is used to separate the username
	  from the domain. */
	var emailPat=/^(.+)@(.+)$/
	/* The following string represents the pattern for matching all special
	  characters.  We don't want to allow special characters in the address.
	  These characters include ( ) < > @ , ; : \ " . [ ]    */
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	/* The following string represents the range of characters allowed in a
	  username or domainname.  It really states which chars aren't allowed. */
	var validChars="\[^\\s" + specialChars + "\]"
	/* The following pattern applies if the "user" is a quoted string (in
	  which case, there are no rules about which characters are allowed
	  and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
	  is a legal e-mail address. */
	var quotedUser="(\"[^\"]*\")"
	/* The following pattern applies for domains that are IP addresses,
	  rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
	  e-mail address. NOTE: The square brackets are required. */
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	/* The following string represents an atom (basically a series of
	  non-special characters.) */
	var atom=validChars + '+'
	/* The following string represents one word in the typical username.
	  For example, in john.doe@somewhere.com, john and doe are words.
	  Basically, a word is either an atom or quoted string. */
	var word="(" + atom + "|" + quotedUser + ")"
	// The following pattern describes the structure of the user
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	/* The following pattern describes the structure of a normal symbolic
	  domain, as opposed to ipDomainPat, shown above. */
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")


	/* Finally, let's start trying to figure out if the supplied address is
	  valid. */

	/* Begin with the coarse pattern to simply break up user@domain into
	  different pieces that are easy to analyze. */
	var matchArray=emailStr.match(emailPat)
	if (matchArray==null) {
	 /* Too many/few @'s or something; basically, this address doesn't
	    even fit the general mould of a valid e-mail address. */
	       //alert("Email address seems incorrect (check @ and .'s)")
	       return false
	}
	var user=matchArray[1]
	var domain=matchArray[2]

	// See if "user" is valid
	if (user.match(userPat)==null) {
	   // user is not valid
	   //alert("The username doesn't seem to be valid.")
	   return false
	}

	/* if the e-mail address is at an IP address (as opposed to a symbolic
	  host name) make sure the IP address is valid. */
	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null) {
	   // this is an IP address
	         for (var i=1;i<=4;i++) {
	           if (IPArray[i]>255) {
	               //alert("Destination IP address is invalid!")
	               return false
	           }
	   }
	   return true
	}

	// Domain is symbolic name
	var domainArray=domain.match(domainPat)
	if (domainArray==null) {
	       //alert("The domain name doesn't seem to be valid.")
	   return false
	}

	/* domain name seems valid, but now make sure that it ends in a
	  three-letter word (like com, edu, gov) or a two-letter word,
	  representing country (uk, nl), and that there's a hostname preceding
	  the domain or country. */

	/* Now we need to break up the domain to get a count of how many atoms
	  it consists of. */
	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 ||
	   domArr[domArr.length-1].length>3) {
	  // the address must end in a two letter or three letter word.
	  //alert("The address must end in a three-letter domain, or two letter country.")
	  return false
	}

	// Make sure there's a host name preceding the domain.
	if (len<2) {
	  var errStr="This address is missing a hostname!"
	  //alert(errStr)
	  return false
	}

	// If we've gotten this far, everything's valid!
	return true;
}
//  End -->

function submitForm(){
	var pf=document.forms['postLupa'];
	var fusername=false, fpwd=false, frpwd=false, femail=false, fnama=false, fverifikasi=false;
	var username='', email='';
	var fsubmit=true;
	var tfalse='Ada kesalahan pada Form Anda !!\n', tusername='', temail='';
	regExp = /[^$A-Za-z0-9]/;
	
	if(pf.elements['username']) { fusername=true; username=trimTxt(pf.elements['username'].value); }
	
	if(pf.elements['email']) { femail=true; email=trimTxt(pf.elements['email'].value); }

	// Username  //
	if(fusername && (username.length<3 || regExp.test(username)) ) {fsubmit=false; tusername="Username minimal 3 karakter, a-z, A-Z, 0-9\n";}

	// Email  //
	if(femail && !emailCheck(email)) {fsubmit=false; temail="Format Email anda belum benar\n";}
	
	tfalse= tfalse+tusername+temail;
	
	if(fsubmit) { pf.elements['subbut'].disabled=true; document.forms['postLupa'].submit(); } else { alert(tfalse); return; }
}