Inserting a Rollover Image

I would like to insert in my sidebar a rollover image.
I am using this code that doesn’t work
And, the link leads to nowhere

<a href=”http://myd./wordpress/&#8221;

onMouseOut=”MM_swapImgRestore()” onMouseOver=”MM_swapImage(‘Image2’,”, url

of my image 1′,1)”>

<img src=”URL of my image 2″ name=”Image2″ title=”title” alt=”alternative text” width

=”the width in px” height=”the height in px”/>

What am i doing wrong ?

Thank you for your help.