Aligning three divs to the right

[xxcaliburr]

How to align three divs to the right part of the page. We can do this

div1 {
padding-left: (xyz) px;
float:left;
}

div1 {
float:left;
}

div1 {
float:left;
}

but my question is what if these three divs are not of constant width (e.g if they contain images) and depending upon some condition different set of images loads having different sizes.

How can we generically define the layout so that the three divs remain in line for every situation and to the right of the page?

Any suggestions??