Copy and paste this code into your website.
<a href="http://www.gpshoresmi.gov/login.aspx?ReturnUrl=%252Flogin.aspx%253FReturnUrl%253D%25252FHome%25252FTabId%25252F5942%25252FPgrID%25252F15914%25252FPageID%25252F4%25252FDefault.aspx">Your Link Name</a>