Copy and paste this code into your website.
<a href="http://www.gpshoresmi.gov/Login?returnurl=%2flogin.aspx%3fReturnUrl%3d%252FCalendar%252FTabId%252F6009%252FPgrID%252F15914%252FPageID%252F6%252FModuleID%252F8923%252FItemID%252F15333%252Fmctl%252FEventDetails%252FDefault.aspx">Your Link Name</a>