diff --git a/typo3_src-4.5.2/t3lib/class.t3lib_tceforms.php b/typo3_src-4.5.2/t3lib/class.t3lib_tceforms.php
index 76dbbd6..3efe571 100644
--- a/typo3_src-4.5.2/t3lib/class.t3lib_tceforms.php
+++ b/typo3_src-4.5.2/t3lib/class.t3lib_tceforms.php
@@ -4004,6 +4004,7 @@ class t3lib_TCEforms {
 														$addJS .
 														'vHWin=window.open(\'' . $url . t3lib_div::implodeArrayForUrl('', array('P' => $params)) . '\'+\'&P[currentValue]=\'+TBE_EDITOR.rawurlencode(' . $this->elName($itemName) . '.value,200)' . $curSelectedValues . ',\'popUp' . $md5ID . '\',\'' . $wConf['JSopenParams'] . '\');' .
 														'vHWin.focus();return false;';
+											$aOnClick = preg_replace("/(\r|\t|\n)/", '', $aOnClick);
 												// Setting "colorBoxLinks" - user LATER to wrap around the color box as well:
 											$colorBoxLinks = Array('<a href="#" onclick="' . htmlspecialchars($aOnClick) . '">', '</a>');
 											if ((string) $wConf['type'] == 'popup') {