function signin() { 
	$('signup_form').style.display='none'; 
	$('signin_form').style.display='block'; 
	$('send_pass').style.display='none';  
}

function signup() { 
    $('signup_form').style.display='block'; 
	$('signin_form').style.display='none'; 
	$('send_pass').style.display='none';  
}

function spass() { 
    $('signup_form').style.display='none'; 
	$('signin_form').style.display='none'; 
	$('send_pass').style.display='block';  
}

function validate(frm) {
	ret = true;
	//console.log(labels);
	try {
		if($(frm).id == 'signin_form') {
			ret =  check_length('in_login', 1, labels.VLU_REQUIRED) && ret;
			ret =  check_length('in_pwd', min_pass_length, labels.PASS_SHORT) && ret;
		}
		else if($(frm).id == 'signup_form') {
			var els = frm.getElements();
			els.each(
					function (el){	require(el, labels.VLU_REQUIRED);	}
			);
			if($('up_login')) ret = check_length('up_login', 1, labels.VLU_REQUIRED) && ret;
			//if($('email')) ret =  validate_email('email', labels.EMAIL_INVALID) && ret;
			ret =  check_length('up_pwd', min_pass_length, labels.PASS_SHORT) && ret;
			ret =  is_equal('up_pwd', 'up_pwd1', labels.PASS_NOMATCH) && ret;

		}
	}catch(e) {
		if (console) console.log(e);
		return false; 
	}
	console.log(ret);
	return ret;
}