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;
}

function submitForm(){
	var pf=document.forms['postLogin'];
	var fusername=false, fpwd=false, frpwd=false, femail=false, fnama=false, fverifikasi=false;
	var username='', pwd='';
	var fsubmit=true;
	var tfalse='Ada kesalahan pada Form Login Anda !!\n', tusername='', tpwd='';
	regExp = /[^$A-Za-z0-9]/;
	
	if(pf.elements['username']) { fusername=true; username=trimTxt(pf.elements['username'].value); }
	
	if(pf.elements['pwd']) { fpwd=true; pwd=trimTxt(pf.elements['pwd'].value); }
	
	// Username  //
	if(fusername && username.length<3 ) {fsubmit=false; tusername="Username anda salah minimal 3 karakter\n";}
	
	// Passowd check  //
	if(fpwd && ( pwd.length<6 || regExp.test(pwd)) ) {fsubmit=false; tpwd="Password anda kurang,minimal 6 karakter, a-z, A-Z, 0-9\n";}

	tfalse= tfalse+tusername+tpwd;
	
	if(fsubmit) { pf.elements['subbut'].disabled=true; document.forms['postLogin'].submit(); } else { alert(tfalse); return; }
}