function friend_operation(user_id, type)
{	
	var params = new Object;
	params.type = type;
	params.id = user_id;
	jQuery.post('/user/friend/', params, function(obj){
		if(obj.error)
			Alert.show(AlertText.ahnung['title'],AlertText.ahnung['error'],'error');
		else
			Alert.show(AlertText.friend.title,(obj.type == 1) ? AlertText.friend.ok : AlertText.friend.quarrel , 'message');
	}, 'json');	
	if (type==0) {
		type=1;
	} else {
		type=0;
	}		
	show_friend_operation_link(user_id, type);			
}

function show_friend_operation_link(user_id, type)
{	
	var text = (type==1) ? '<img src="/i/u_addfriend.jpg">' : '<img src="/i/u_deletefriend.jpg">';
	$('#operation_friend').html('<a href="#" onclick="friend_operation(' + user_id + ',\'' + type + '\');">' + text + '</span>');
}