function eventEnableEndTime() {
   var checkbox        = document.getElementById('localevents_noendtime');
   var endtime_hour    = document.getElementById('localevents_endtime_hour');
   var endtime_minute  = document.getElementById('localevents_endtime_minute');   
   var endtime_ampm    = document.getElementById('localevents_endtime_ampm');
   if(!checkbox.checked)
   {
      endtime_hour.disabled = false;
      endtime_minute.disabled = false;
      endtime_ampm.disabled = false;
      return false;
   }
   else
   {
      endtime_hour.disabled = true;
      endtime_minute.disabled = true;
      endtime_ampm.disabled = true; 
      return true;
   }
} 

function eventEnableTime() {
   var checkbox        = document.getElementById('localevents_allday');   
   var endtime_checkbox= document.getElementById('localevents_noendtime');
   var starttime_hour  = document.getElementById('localevents_starttime_hour');
   var starttime_minute= document.getElementById('localevents_starttime_minute');   
   var starttime_ampm  = document.getElementById('localevents_starttime_ampm');
   var endtime_hour    = document.getElementById('localevents_endtime_hour');
   var endtime_minute  = document.getElementById('localevents_endtime_minute');   
   var endtime_ampm    = document.getElementById('localevents_endtime_ampm');
   if(!checkbox.checked)
   {
      if(endtime_checkbox.checked)
      {
         endtime_hour.disabled = true;
         endtime_minute.disabled = true;
         endtime_ampm.disabled = true;
         endtime_checkbox.disabled = false;
      }
      else
      {
         endtime_hour.disabled = false;
         endtime_minute.disabled = false;
         endtime_ampm.disabled = false;
         endtime_checkbox.disabled = false;
         endtime_checkbox.checked  = false; 
      }      
      starttime_hour.disabled = false;
      starttime_minute.disabled = false;
      starttime_ampm.disabled = false;
      return false;
   }
   else
   {      
      starttime_hour.disabled = true;
      starttime_minute.disabled = true;
      starttime_ampm.disabled = true;
      endtime_hour.disabled = true;
      endtime_minute.disabled = true;
      endtime_ampm.disabled = true; 
      endtime_checkbox.disabled = true;
      return true;
   }
   
 }


function eventFormStartup()
{
   eventEnableTime();
}


function eventLocationSwitch(link)
{   
   var location_search_text  = document.getElementById('location_search_text');
   var localevent_locationid = document.getElementById('localevents_locationid');
   var newlocation_container = document.getElementById('newlocation_container');   
   if(location_search_text.disabled==true)
   {
      link.innerHTML = 'Enter new location';
      localevent_locationid.disabled = false;
      location_search_text.disabled  = false;
      newlocation_container.style.display = 'none';
   }
   else   
   {
      link.innerHTML = 'Search existing location';  
      localevent_locationid.disabled = true;
      location_search_text.disabled = true;
      newlocation_container.style.display = 'block';      
      
   }  
}