function GetInnerSrc() {
		return ($this->pET_PosBeg===false) ? false : substr($this->Txt, $this->pST_PosEnd + 1, $this->pET_PosBeg - $this->pST_PosEnd - 1 );
	}
function GetInnerSrc() {
		return ($this->pET_PosBeg===false) ? false : substr($this->Txt, $this->pST_PosEnd + 1, $this->pET_PosBeg - $this->pST_PosEnd - 1 );
	}
Return false if SelfClosing.