libraries/tbs/plugins/tbs_plugin_opentbs.php
function switchToRelative() {
		$this->FindEndTag();
		// Save info
		$this->rel_Txt = &$this->Txt;
		$this->rel_PosBeg = $this->PosBeg;
		$this->rel_Len = $this->GetLen();
		// Change the univers
		$src = $this->GetSrc();
		$this->Txt = &$src;
		// Change positions
		$this->_ApplyDiffToAll(-$this->PosBeg);
	}
function switchToRelative() {
		$this->FindEndTag();
		// Save info
		$this->rel_Txt = &$this->Txt;
		$this->rel_PosBeg = $this->PosBeg;
		$this->rel_Len = $this->GetLen();
		// Change the univers
		$src = $this->GetSrc();
		$this->Txt = &$src;
		// Change positions
		$this->_ApplyDiffToAll(-$this->PosBeg);
	}
Useful to save time in search and replace.