PHP Addressing

[IATIA]

I want to change this --->

<a href="http://67.222.96.12/~technomo/index.php?main_page=page&id=1" target="_self">

into this --->

<a href="HTTP_SERVER/index.php?main_page=page&id=1" target="_self">

Sometimes it is difficult to see the forest for the trees!
Guess what the solution was? (I've got my dunce cap on, anyone else?)

<a href="index.php?main_page=page&id=1" target="_self">

It works in the sidebox or main page and is totally relocatable.

ZenCart 1.3.8
PHP 5.2.6
MySQL 5.0.67
Glacial Age Template
Editable_Sidebox_1.0