How to display color and size in a simple product in Magento -

i'm developing magento store , need display color , size of simple product in front end, possible?

i got configurable product not simple product.

something this: http://www.saiajustamodafesta.com.br/loja/vestido-longo-saia-justa.html

anybody can me?

thanks.

in frontend/[your-package]/[your-theme]/template/catalog/product/view.phtml file

$color = $_product->getcolor(); <img src="<?php echo $this->getskinurl('images/'.$color.'.jpg'); ?>"> 

you need upload jpg image same color name ex red.jpg same size