Copy and paste this code into your website.
<a href="http://www.gpshoresmi.gov/login.aspx?ReturnUrl=%2flogin.aspx%3fReturnUrl%3d%252FCalendar%252Ftabid%252F6009%252FModuleID%252F8923%252FItemID%252F16802%252Fmctl%252FEventDetails%252FDefault.aspx">Your Link Name</a>