Copy and paste this code into your website.
<a href="http://www.gpshoresmi.gov/Default.aspx?tabid=5942&ctl=Login&returnurl=/login.aspx?ReturnUrl=%2Flogin.aspx%3FReturnUrl%3D%252Flogin.aspx%253FReturnUrl%253D%25252FCalendar%25252Ftabid%25252F6009%25252FModuleID%25252F8923%25252FItemID%25252F13199%25252Fmctl%25252FEventDetails%25252FDefault.aspx">Your Link Name</a>