Start a website from iis

Hi, 
I have an asp.net solution that includes 2 websites. 
I put the website on iis and they work fine from iis: the starting page is http://localhost/EMD
But when I start from visual studio it opens the page : http://localhost:56979/Default.aspx 

How can Set Visual Studio to open the pages in iis so I can get rid of the :56979 ?

Thanks