function nav_current(varCell)
   {
        document.getElementById(varCell).className = 'nav_main_cell_current';
   }
   
   function nav_hover(varCell)
   {
        if(document.getElementById("HF_Nav_Page").value != varCell)
        {
            document.getElementById(varCell).className = 'nav_main_cell_hover';
        }        
   }
   
   function nav_static(varCell)
   {
        if(document.getElementById("HF_Nav_Page").value != varCell)
        {
            document.getElementById(varCell).className = 'nav_main_cell';
        }
   }
   
   function begin_registration()
   {
        document.getElementById("HF_Registration_Step").value = "Company_Name";
   }
   
   function attendee_detail(varID)
   {
        document.getElementById("HF_ID_Attendee").value = (varID.toString());
        
        if (varID == 0)
        {
            document.getElementById("HF_Registration_Step").value = 'Company_Attendee_Add';
        }
        else
        {
            document.getElementById("HF_Registration_Step").value = 'Company_Attendee_Edit';
        }        
   }
   
   function attendee_detail_nsc(varID)
   {
        document.getElementById("HF_ID_Registration_Attendee").value = (varID.toString());
        
        if (varID == 0)
        {
            document.getElementById("HF_Registration_Step").value = 'Event_Registration_NSC_Attendee_Add';
        }
        else
        {
            document.getElementById("HF_Registration_Step").value = 'Event_Registration_NSC_Attendee_Edit';
        }        
   }
   
   function incentive_detail_psc(varID)
   {
        document.getElementById("HF_ID_Registration_Incentive").value = (varID.toString());
        
        if (varID == 0)
        {
            document.getElementById("HF_Registration_Step").value = 'Event_Registration_PSC_Incentive_Add';
        }
        else
        {
            document.getElementById("HF_Registration_Step").value = 'Event_Registration_PSC_Incentive_Edit';
        }        
   }
   
   function attendee_detail_psc(varID)
   {
        document.getElementById("HF_ID_Registration_Attendee").value = (varID.toString());
        
        if (varID == 0)
        {
            document.getElementById("HF_Registration_Step").value = 'Event_Registration_PSC_Attendee_Add';
        }
        else
        {
            document.getElementById("HF_Registration_Step").value = 'Event_Registration_PSC_Attendee_Edit';
        }        
   }
   
   function check_sponsorship_nsc()
   {
        if (document.form1.UC_Register_DDL_Sponsorship_NSC.selectedIndex != 0)
        {
            alert("Please click 'ADD' to register your selection.");
            return (false);
        }
        else
        {
            return (true);
        }
   }
   
   function check_booth_psc()
   {
        if (document.form1.UC_Register_DDL_Booth_PSC.selectedIndex != 0)
        {
            alert("Please click 'ADD' to register your selection.");
            return (false);
        }
        else
        {
            return (true);
        }
   }
   
   function check_sponsorship_psc()
   {
        if (document.form1.UC_Register_DDL_Sponsorship_PSC.selectedIndex != 0)
        {
            alert("Please click 'ADD' to register your selection.");
            return (false);
        }
        else
        {
            return (true);
        }
   }