Copy and paste this code into your website.
<a href="http://www.gpshoresmi.gov/login.aspx?ReturnUrl=/login.aspx?ReturnUrl=%2Flogin.aspx%3FReturnUrl%3D%252FCalendar%252Ftabid%252F6009%252FModuleID%252F8923%252FItemID%252F14188%252Fmctl%252FEventDetails%252FDefault.aspx">Your Link Name</a>