Hiding index.php When Using site_url()

[eluser]bluepicaso[/eluser]
yes i have it says this

Options -Indexes
Options +FollowSymLinks
Options -MultiViews
DirectoryIndex index.php

<IfModule mod_rewrite.c>
RewriteEngine on
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [NC,L,QSA]
</IfModule>
<IfModule !mod_rewrite.c>
#<IfModule !mod_rewrite.so>
ErrorDocument 404 index.php
</IfModule>