function Site_Utility() {
  this.loaded = 0;
  
  this.staff_access = 0;
  
  this.time_entries = [];
  this.time_errors = 0; // "time-errors" input tag (hidden) created? no/yes
}

function site_utility_initialize() {
  with (this) {
    if (Site.loaded == 1) {
      loaded = 1;
      root = "http://www.mns-firstnet.ca/";
    } else {
      window.setTimeout('Utility.Initialize()',10);
    }
  }
}

function site_utility_addfield(n) {
  var name = (n != "" ? n+"_" : "");
  var field;
  var desc;
  var errors;
  var success;
  var entries;
  var count;
  
  var insert_num = 1;
  
  var i = 1;
  var x = 0;
  var div;
  var copy = "";
  
  with (this) {
    field = $(name+'item_1');
    entries = $(name+'item_entries');
    count = $(name+'item_count');
    
    if (field && entries && count) {
      if ($(name+'item_insert')) {
        insert_num = $(name+'item_insert').options[$(name+'item_insert').selectedIndex].value;
      }
      
      for (z = 0; z < insert_num; z++) {
        i = 1;
        x = 0;
        
        while (x == 0) {
          if ($(name+'item_'+i)) {
            i++;
          } else {
            x = i;
          }
        }
        
        div = document.createElement("div");
        div.id = name+"item_"+x;
        
        copy = field.innerHTML.replace(/item_errors_1/gi,"item_errors_"+x);
        copy = copy.replace(/item_calendar_1/gi,"item_calendar_"+x);
        copy = copy.replace(/#1/gi,"#"+x);
        
        div.innerHTML = copy;
        entries.insertBefore(div,null);
        
        if ($(name+'item_errors_'+x)) {
          $(name+'item_errors_'+x).style.visibility = "hidden";
          $(name+'item_errors_'+x).style.display = "none";
        }
        
        count.innerHTML = x;
      }
    }
  }
}

function site_utility_number(v) {
  return (isFinite(v) && parseFloat(v) == v ? (v >= 0 ? 1 : 0) : 0);
}

function site_utility_round(v,p) {
  var r = "";
  
  if (v != "") {
    if (Utility.Number(v) == 1) {
      r = (v*1).toFixed(p);
    }
  }
  
  return r;
}

// field - HTML input object
// opt - "hour", "min", "ampm", "complete"
// r - return result (0 - no, 1 - yes)
// -----------------------------------
function site_utility_time(field,opt,r) {
  var result = "";
  var go = false;
  var temp = "";
  var id = "";
  var x = -1;
  
  var e;
  
  var pieces = [];
      pieces['hour'] = "";
      pieces['min'] = "";
      pieces['ampm'] = "";
  
  with (this) {
    opt = isString(opt);
    r = isNumber(r);
    
    if (opt != "complete") {
      field = isObject(field);
      
      x = field.id.search(/-/gi);
      id = field.id.substr(0,x);
      
      time_entries[id] = 1;
    }
    
    if (time_errors == 0) {
      e = document.createElement('INPUT');
      e.id = "time-errors";
      e.type = "hidden";
      e.value = "";
      field.insertBefore(e,null);
      
      time_errors = 1;
    } else {
      e = $('time-errors');
      
      if (InputType(e,'hidden') === false) {
        e.parentNode.removeChild(e);
        e = document.createElement('INPUT');
        e.id = "time-errors";
        e.type = "hidden";
        e.value = "";
      }
    }
    
    switch (opt) {
    case "hour":
      if (InputType(field,'text')) {
        result = Round(field.value,0);
        
        if (result != "") { if (result < 1 || result > 12) { result = ""; } else { result = field.value; } }
        
        go = true;
      }
      break;
    case "min":
      if (InputType(field,'text')) {
        result = Round(field.value,0);
        
        if (result != "") { if (result < 0 || result > 59) { result = ""; } else { result = field.value; } }
        
        go = true;
      }
      break;
    case "ampm":
      if (HTMLTag(field,'select')) {
        temp = field.options[field.selectedIndex].value;
        
        if (temp != "am" && temp != "pm") {
          field.selectedIndex = 0;
        }
        
        go = true;
      }
      break;
    case "complete":
      for (i in time_entries) {
        if ($(i+"-hour").tagName == "INPUT" && $(i+"-min").tagName == "INPUT" && $(i+"-ampm").tagName == "SELECT") {
          pieces['hour'] = Time($(i+'-hour'),"hour",1);
          pieces['min'] = Time($(i+'-min'),"min",1);
          pieces['ampm'] = Time($(i+'-ampm'),"ampm",1);
          
          temp = pieces['hour']+pieces['min']+pieces['ampm'];
          
          if (temp != "") {
            if (pieces['hour'] == "" || pieces['min'] == "" || pieces['ampm'] == "") {
              e.value = e.value + "'"+$(i+"-time").title+"' - This entry is incomplete.\n";
            } else {
              $(i+"-time").value = pieces['hour']+":"+pieces['min']+" "+pieces['ampm'];
            }
          }
        }
      }
      
      if (e.value != "") {
        alert(e.value);
      } else {
        if (HTMLTag(field,'form')) {
          field.submit();
        }
      }
      break;
    }
    
    if (opt != "ampm" && opt != "complete") {
      if (go) {
        if (r == 0) {
          field.value = result;
        } else if (r == 1) {
          return result;
        }
      }
    }
  }
}

// Check variable types
// ---------------------------------------------

function site_utility_is_string(s) {
  return (typeof(s) == 'string' ? s : '');
}

function site_utility_is_number(n) {
  return (typeof(n) == 'number' ? n : 0);
}

function site_utility_is_boolean(b) {
  return (typeof(b) == 'boolean' ? b : false);
}

function site_utility_is_object(o) {
  if (typeof(o) != 'object') { o = new Object(); }
  return o;
}

function site_utility_is_array(a) {
  if (typeof(a) == 'object' && (a instanceof Array)) { a = a; } else { a = new Array(); }
  return a;
}

// Other
// --------------------------------------------
// haystack > ie. ['one','two','three']

function site_utility_in_array(needle,haystack) {
  var found = false;
  
  with (this) {
    needle = isString(needle);
    haystack = isArray(haystack);
    
    if (haystack.length > 0) {
      for (i in haystack) {
        if (haystack[i] == needle) {
          found = true;
        }
      }
    }
  }
  
  return found;
}

// Form-related functions
// --------------------------------------------

function site_utility_html_tag(field,t) {
  var result = false;
  
  t = Utility.isString(t);
  t = t.toUpperCase();
  
  field = Utility.isObject(field);
  
  if (t != "") {
    if (field.tagName) {
      if (field.tagName == t) {
        result = true;
      }
    }
  }
  
  return result;
}

function site_utility_input_type(field,t) {
  var result = false;
  var types = new Array("button","checkbox","file","hidden","image","password","radio","reset","submit","text");
  var itype = "";
  
  t = Utility.isString(t);
  
  for (var i = 0; i < types.length; i++) {
    if (types[i] == t) { itype = types[i]; }
  }
  
  if (itype != "" && Utility.HTMLTag(field,'input') === true) {
    if (field.type == itype) {
      result = true;
    }
  }
  
  return result;
}

// Locations (countries, provinces, towns)
// --------------------------------------------
// - Draws from "areas" table
// applyTo -> id of field/listing

function site_utility_locations(id,applyTo) {
  var loader_exists = Utility.HTMLTag($('data_loader'),'iframe');
  
  with (this) {
    if (loader_exists) {
      id = isString(id);
      applyTo = isString(applyTo);
      
      // Validate: ID (id)
      if (Number(id) == 1) {
        if (id < 0) { id = 0; }
      } else {
        id = 0;
      }
      
      if (id > 0 && applyTo != "") {
        $('data_loader').src = "http://www.mns-firstnet.ca/x/utility/locations.php?id="+id+"&a="+applyTo;
      }
    }
  }
}

function site_utility_location_clear(applyTo,toplevel) {
  var province = [];
      province['list'] = $(applyTo+'-province-list');
      province['field'] = $(applyTo+'-province-field');
      province['hidden'] = $(applyTo+'-province-hidden');
  var town = [];
      town['list'] = $(applyTo+'-town-list');
      town['field'] = $(applyTo+'-town-field');
      town['hidden'] = $(applyTo+'-town-hidden');
  
  with (this) {
    if (toplevel == 'country' && province['field'] && province['hidden']) {
      province['list'].selectedIndex = 0;
      province['field'].value = "";
      province['hidden'].value = "";
    }
    
    if ((toplevel == 'country' || toplevel == 'province') && town['field'] && town['hidden']) {
      town['list'].selectedIndex = 0;
      town['field'].value = "";
      town['hidden'].value = "";
    }
  }
}

// Add functions to class
// --------------------------------------------

Site_Utility.prototype.Initialize = site_utility_initialize;

Site_Utility.prototype.AddField = site_utility_addfield;

Site_Utility.prototype.Number = site_utility_number;
Site_Utility.prototype.Round = site_utility_round;

Site_Utility.prototype.Time = site_utility_time;

Site_Utility.prototype.isString = site_utility_is_string;
Site_Utility.prototype.isNumber = site_utility_is_number;
Site_Utility.prototype.isBoolean = site_utility_is_boolean;
Site_Utility.prototype.isObject = site_utility_is_object;
Site_Utility.prototype.isArray = site_utility_is_array;

Site_Utility.prototype.inArray = site_utility_in_array;

Site_Utility.prototype.HTMLTag = site_utility_html_tag;
Site_Utility.prototype.InputType = site_utility_input_type;

Site_Utility.prototype.Locations = site_utility_locations;
Site_Utility.prototype.LocationClear = site_utility_location_clear;

// Initialize class
// --------------------------------------------

var Utility = new Site_Utility();
    Utility.Initialize();