[JavaScript][PHP] onmouseover Opcje

[Chelo]

Witam.

[HTML] pobierz, plaintext 
<tr  onmouseover="this.style.backgroundColor='#2e91c6';"> 
		<td class="{shoutrow.ROW_CLASS}" width="100%" > <span class="gensmall" style="font-size:9px; font-family: Tahoma, Verdana, Arial, Helvetica, sans-serif">{shoutrow.DELMSG} {shoutrow.EDITMSG} {shoutrow.DATE}</span><span class="gensmall"> {shoutrow.NAME}: {shoutrow.MSG}</span></td>
		<td align="right" class="{shoutrow.ROW_CLASS}"><a href="#"><img src="{IMAGE_1}"></a></td>
 
	</tr>
[HTML] pobierz, plaintext 

Dlaczego po zastosowaniu kodu powyżej, skrypt nie podświetla tabelek, a jak onmouseover="this.style.backgroundColor='#2e91c6'; dam do któregoś td to zadziała?