CComponentAjax::__PrepareForms

function __PrepareForms(&$data)
{
	$this->_checkPcreLimit($data);
	$arData = preg_split('/(]*)>)/i'.BX_UTF_PCRE_MODIFIER, $data, -1, PREG_SPLIT_DELIM_CAPTURE);

	$bDataChanged = false;
	if (is_array($arData))
	{
		for ($key = 0, $l = count($arData); $key < $l; $key++)
		{
			if ($key % 3 != 0)
			{
				$arIgnoreAttributes = array('target');
				$bIgnore = false;
				foreach ($arIgnoreAttributes as $attr)
				{
					if (mb_strpos($arData[$key], $attr.'="') !== false)
					{
						$bIgnore = true;
						break;
					}
				}

				if (!$bIgnore)
				{
					preg_match_all('/action=(["']{1})(.*?)1/i', $arData[$key], $arAction);
					$url = $arAction[2][0];

					if ($url === '' || $this->__isAjaxURL($url) || $this->__isAjaxURL(urldecode($url)))
					{
						$arData[$key] = CAjax::GetForm($arData[$key+1], 'comp_'.$this->componentID, $this->componentID, true, $this->bShadow);
					}
					else
					{
						$new_url = str_replace(CAjax::GetSessionParam($this->componentID), '', $url);
						$arData[$key] = str_replace($url, $new_url, $arData[$key]);
					}

					$bDataChanged = true;
				}

				unset($arData[$key+1]);
				$key++;
			}

		}
	}

	if ($bDataChanged)
	{
		$data = implode('', $arData);
	}
}