<!--
function addBox(boxname) {
   var form = document.checkboxes
   var zones = form['zones[]']

   for (var i=0; i<zones.length; i++) {
      var label = zones[i].value
      if ( label == boxname ) {
         zones[i].checked = !zones[i].checked
         break
      }
   }
}

function setAllNone() {
   var form = document.checkboxes
   var zones = form['zones[]']
   var newvalue = form.allnone.checked

   for (var i=0; i<zones.length; i++) {
      zones[i].checked = newvalue
   }
   return true
}

function validateBoxes() {
   var form = document.checkboxes
   var zones = form['zones[]']
   var from  = form.from.value
   var success = 0

   for (var i=0; i<zones.length; i++) {
      if ( zones[i].checked ) {
         success = 1
         break
      }
   }

   if ( success == 0 ) {
      switch (from) {
         case "ring" :
            alert('You must select at least one neighborhood before proceeding.')
            break
         case "area" :
            alert('You must select at least one subarea before proceeding.')
            break
         default :
            alert('You must select at least one before proceeding.')
      }
      return false
   }

   return true
}

function gotoNextPage(zone) {
   var form = document.regionmap
   zoneint = parseInt(zone)
   if ( isNaN(zoneint) ) {
      form['zones[]'].value = zone
      form.zonelist.value   = zone
   }
   else {
      form.action = "charlotte_area_" + zone + ".htm"
   }
   form.submit()
   return true
}
//-->