"Default" Avatar -Sort of thing - Need help!

[sgtryan]

Hello,

I am trying to create a script that will draw the user's avatar, using:

if( a certain user has NO avatar)
{
 echo "<img src='forum/images/avatars/default_avatar.gif";
}
else
{
echo "<img src='http://www.^^^^^^^^^^.com/forum/image.php?u=$userid[userid]'>";
}

I am sorta trying to make a script like that, so each user who posts will have their avatar next to that post. (this is a remote script hack to VB)

Any clue how I would go about doing this?