function selectEvent(reload)
{
var eventItem=document.getElementById("Event")

   document.getElementById("Time").style.visibility="hidden"
   document.getElementById("Submit").style.visibility="hidden"
   var dateItem=document.getElementById("Date")
   if (eventItem.value == "0" )
    {
      document.getElementById("Date").style.visibility="hidden"
      document.getElementById("lower-table").rows[0].cells[1].innerHTML=' ';
      return
    } 
    if (reload == "0")
    	{dateItem.selectedIndex=0}
    var nd=new Array()
    var idx=eventItem.value;
    document.getElementById("lower-table").rows[0].cells[1].innerHTML=eventdesc[idx];
    j=1
    for (i in eventcodes)
    {
       if (eventcodes[i] == eventItem.value)
       {
         dateItem.length=j+1
         nd=evdates[i].split("|")
         dateItem.options[j].text=nd[1]
         dateItem.options[j].value=nd[0]
         j++
       }
    }
    dateItem.style.visibility="visible"
}
function selectDate(reload)
{
var eventItem=document.getElementById("Event")
var dateItem=document.getElementById("Date")
var timeItem=document.getElementById("Time")
var submitItem=document.getElementById("Submit")
   submitItem.style.visibility="hidden"
   if (dateItem.value == "0" )
    {
      timeItem.style.visibility="hidden"
      return
   }
   var which=eventItem.value+"|"+dateItem.value
   if (reload == "0" )
      {timeItem.selectedIndex=0 }
   j=1
   for (i in evdatcodes)
   {
      if (evdatcodes[i] == which)
      {
         timeItem.length=j+1
         timeItem.options[j].text=evtimes[i]
         timeItem.options[j].value=mevcodes[i]
         j++
      }
   }
   timeItem.style.visibility="visible"
   if (timeItem.length==2) 
   {
	timeItem.value=timeItem.options[1].value;
	timeItem.selectedIndex=1;
        submitItem.style.visibility="visible"
   }
}
function selectTime()
{
var submitItem=document.getElementById("Submit")
var timeItem=document.getElementById("Time")
   if (timeItem.value == "0" )
    {
      submitItem.style.visibility="hidden"
      return
   }
    submitItem.style.visibility="visible"
}

function load()
{
      var d=document.getElementById("Date").value;
      var t=document.getElementById("Time").value;
      if (document.getElementById("Event").value == "0") {
          document.getElementById("Date").style.visibility="hidden"
	  document.getElementById("Date").selectedIndex=0   
      } else {
	selectEvent("1")
      }
      if (d == "0") {
          document.getElementById("Time").style.visibility="hidden"
	  document.getElementById("Time").selectedIndex=0   
      } else {
	 document.getElementById("Date").selectedIndex=d
	 selectDate("1")
      }
      if (t == "0") {
          document.getElementById("Submit").style.visibility="hidden"
      } else {
	  document.getElementById("Time").selectedIndex=t
          document.getElementById("Submit").style.visibility="visible"
      }
}