// JavaScript Document
function Login(){

	var username = document.getElementById('username');
	var password = document.getElementById('password');
	var form = document.getElementById('loginform');
	var errors = '';

	if ((username.value.length < 3) || (username.value == 'Username')){
		errors = errors + 'Username is too short! \n';
		username.value = '';
		username.focus();
	}
	if ((password.value.length < 3) || (username.value == 'Password')){
		errors = errors + 'Password is too short! \n';
		password.value = '';
		password.focus();
	}

	if (errors){
		alert(errors); 
		return false;
	} else {
		form.action = "/_learners/login";
		form.submit();
		return true;
	}

}

function checkInput(obj){
	
	var value = obj.value;
	
	if ((value == 'Username')||(value == 'Password')||(value == 'Keyword')){
		obj.value = '';
	}

}