function memLogin() {
	
	var objForm = document.loginForm;
	var rtnFlag = false;
	var loginBtn = document.getElementById('btn_login');
	
	if (objForm) {
		
		rtnFlag = true;
		loginBtn.style.disabled = true;
		
		objForm.action = 'act_login.php';
		objForm.method = 'post';
		objForm.target = 'ifmStatus';
		
		if (objForm.Email.value=='') {
			rtnFlag = false;
			alert('Please enter your email');
			objForm.Email.focus();
		} else if (objForm.Password.value=='') {
			rtnFlag = false;
			alert('Please enter password');
			objForm.Password.focus();
		}
		
		if (rtnFlag==true) {
			objForm.submit();
		} else {
			loginBtn.style.disabled = false;
		}
		
	}
}