Помогите создать нужную регулярку.

<?
<img src="./d.gif" alt="" /> <span onmouseover="_tipon(this)" onmouseout="_tipoff()"><span class="google-src-text" style="direction: ltr; text-align: left"><a href="?pict/100/">Картинки</a> (534602) <span style="color: #0000ff">+6809</span> <span style="color: #ff0000">+913</span></span> <a href="?pict/100/">Картинки</a> (534602) <span style="color: #0000ff">+6809</span> <span style="color: #ff0000">+913</span></span>

<?
<img src="./d.gif" alt="" /> <span onmouseover="_tipon(this)" onmouseout="_tipoff()"><span class="google-src-text" style="direction: ltr; text-align: left"><a href="?themes/300/">Темы</a> (60854)</span> <a href="?themes/300/">Темы</a> (60854)</span> 

<?
preg_replace('/<span onmouseover(.*?)<\/span>/si','',$arr[$i]);
и переключателем на 
preg_replace('/<span onmouseover(.*?)<\/span><\/span>/si','',$arr[$i]);

<? preg_replace('/<span.*<a/','<a',$arr[$i]);