body {

font-family: Arial, Helvetica;
color: Blue;

}

a 
{
	border-style: none;
}

table 
{
	font-size: 12px;
	
}

ul
{
	list-style-image: url(images/GreenDot.jpg);
	margin-top: 0;
}

h1 
{
	font-size: 14px;
	background-color: Blue;
	color: White;
}

<a href="" onMouseOver="document.MyImage.src='image2.gif';" onMouseOut="document.MyImage.src='image1.gif';"> 
<img src="image1.gif" name="MyImage">