function doLogin(loginUrl, form) {
	var username = form.username.value;
	//var password = hex_md5(form.password.value);
	var password = form.password.value; //asina update here
	var url = loginUrl;
	$.ajax({
		url: url,
	    type: "POST",
	    data: { username: username, password: password },
	    dataType: "json",
	    timeout: 10000,
	    error: function(error,exc) {
			if(error.status==0){
				alert('You are offline!!\n Please Check Your Network.');
			}else if(error.status==404){
				alert('Requested URL not found.');
			}else if(error.status==500){
				alert('Internel Server Error.');
			}else if(exc=='parsererror'){
				alert('Error.\nParsing JSON Request failed.');
			}else if(exc=='timeout'){
				alert('Request Time out.');
			}else {
				alert('Unknown Error.\n'+'code:'+error.status + "," + error.responseText);
			}	
	        return;
	    },
	    success: function(json){
			var result = json.result;
			if(!result) {
				$('.error_message_modal').html("<p class='error_message_login'>Login failed! Please enter valid username and password.</p>");
				form.password.value = "";
				form.username.focus();
			} else {
				location.reload(true);
			}
	    }
	});
	return false;
}

//asina update here
function doFbLogin(loginUrl, form) {
	var user_fb = form.user_fb.value;
	var url = loginUrl;
	$.ajax({
		url: url,
	    type: "POST",
	    data: { user_fb: user_fb},
	    dataType: "json",
	    error: function(error) {
	        alert('Error. Please try again.');
	    },
	    success: function(json){
			var result = json.result;
			if(!result) {
				$('.error_message_modal').html(json.errormsg+'<hr size="1"/>');
				form.user_fb.value = "";
				form.user_fb.focus();
			} else {
				location.reload(true);
			}
	    }
	});
	return false;
}