function checkLogin() {
	var proceed = false;
	var error = false;

	if ((document.loginForm.email.value.length == 0) && (error == false)) {
		alert('Please enter your email address');
		error = true;
		document.loginForm.email.focus();
	}

	if ((!checkEmail(document.loginForm.email)) && (error == false)) {
		alert('Please enter a valid email address');
		error = true;
		document.loginForm.email.focus();
	}		
	
	if (error == false) {
		proceed = true;
	}
	
	return proceed;
}