conditionals not working

[harmor19]

In my product I check what number is in the field then I write an HTML conditional for the appropiate parts.

PHP Code:

 //not logged in
        if($dlink['view_link] == 1)
        {
          $custom_droplinks .= "<if condition='".$show['registerbutton']."'>
<tr><td class='vbmenu_option'>$img<a href='".$dlink['url']."' target='$new' title='".$dlink['alt']."'>".$dlink['name']</a></td></tr></if>";
        }
       //is logged in
        elseif($dlink['view_link] == 2)
        {
          $custom_droplinks .= "<if condition='".$show['member']."'>
<tr><td class='vbmenu_option'>$img<a href='".$dlink['url']."' target='$new' title='".$dlink['alt']."'>".$dlink['name']</a></td></tr></if>";
        }
       //both
        else
        {
          $custom_droplinks .= "
<tr><td class='vbmenu_option'>$img<a href='".$dlink['url']."' target='$new' title='".$dlink['alt']."'>".$dlink['name']</a></td></tr>";
        } 


The hook I'm using is "global_start"