img[src$='#floatleft']
{
	float:left;
        display: block;
        margin-left: auto;
        margin-right: auto;
       	//etc. etc/
}

img[src$='#floatright']
{
	float:right;
	display: block;
        margin-left: auto;
        margin-right: auto;
       //etc. etc.
}