function validateLoginForm(form) {
	if(form.emailaddress.value=='') {
		alert('Your email address is required');
		form.emailaddress.focus();
		return false;
	}

	if(!emailCheck(form.emailaddress.value)) {
		form.emailaddress.focus();
		return false;
	}

	if(form.password.value=='') {
		alert('Your password is required');
		form.password.focus();
		return false;
	}
	form.submitbutton.value = 'Please wait..';
	form.submitbutton.disabled = true;

	var contentDiv = 'contentDiv';
	var url = '/ajax/login.ajax.php';
	var loadingDiv = 'loadingDiv';

	new Ajax.Updater(contentDiv, url, 
									 {method: 'post', 
									 evalScripts:true, 
									 parameters : Form.serialize(form),
									 onLoading: function() { $(contentDiv).toggle(); $(loadingDiv).toggle(); },
									 onSuccess: function() { $(loadingDiv).toggle(); $(contentDiv).toggle(); } });

	return false;
}