On Color selection of product, how to show only available attributes.

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I have made a custom template with panel for selection of attributes. Jewelry combining with color of product.
How do I check if an attribute is a set combination for a certain product color? I mean in the form of a PHP conditional, so that an attribute item will not show on the custom panel. Please check it out:

http://alacartedancewear.com/product.php?id_product=50

I have combinations of three attributes Color, Belt, and Jewelry. I want only the jewelry that is available for a selected color to be displayed on the selection panel, (which replaces a dropdown cotrol (disabled but shown))
What would that PHP conditional be? (i.e. If Jewelry A exists for color Red)
Thanks in advance! I purposely didn't include any PHP code, but you can see it on my site.