Alpha:
<div style="filter:alpha(Opacity=20)">
<img src=" " width="160" height="120" />
</div>

Gray:
<div style="filter:gray()">
<img src="  " width="160" height="120" />
</div>

Invert:
<div style="filter:invert()">
<img src=" " width="160" height="120" />
</div>

Xray:
<div style="filter:xray()">
<img src="  " width="160" height="120" />
</div>