How do I obtain IDX Code for MLS search to use on my Blog?

Can you create a widget that will allow me to put my Real Estate MLS (Multiple Listing Service) IDX search criteria on my blog or website? This would enable a home buyer to search for prospects through my site and local MLS. I know that Remax has this function but that code will not work for outside agents like myself. FYI: That code is: <center><iframe src="http://completesolutions.florida.remax.com/ListingWidgets/Widgetquicksearch_r4.aspx" height="100" width="500"></iframe></center>