[RLShare]

You got it a little confused. You use PHP directly in the plug-in and then place the HTML you want into a variable to be displayed in the template...

Here is a quick example of what a plugin would look like with your first if statement....

PHP Code:

$alnav='';
if (empty($p)) {
               $alnav.='<li><a href="../?p=home" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage(\'home\',\'\',\'../images/nav/nav_home_h.gif\',1)"> 
                <img src="../images/nav/nav_home_a.gif" id="home" /></a></li>';
            } 


Then you would place a reference to $alnav into the template