/* 
 * Ensemble of Javascript functions for GBIF-Sweden's portal
 *
 * Copyright 2007-2008 Mickaël Graf & The Swedish Museum of Natural History
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the 
 *     Free Software Foundation
 *     51 Franklin Street, 5th Floor
 *     Boston, MA 02110-1301 USA
 */
var mapXmlHttp;
var colXmlHttp;
var classificationMode = '';

function displaySearchBox (obj) {
  var menus = document.getElementsByTagName ("span");
  var boxes = document.getElementsByTagName ("div");
  for (i = 0; i < menus.length; i++) {
    if (/search_menu/.test(menus[i].className)) {
      menus[i].style.backgroundColor = "transparent";
      menus[i].style.color = "#000000";  
    }
  }
  for (i = 0; i < boxes.length; i++){
    if (/search_box/.test(boxes[i].className)) {
      /* Everybody becomes like the invisible man...*/
      boxes[i].style.visibility = "hidden";
    }
  }
  /* now show the box chosen */
  document.getElementById(obj.id).style.backgroundColor = "#52983d";
  document.getElementById(obj.id).style.color = "#ffffff";
  document.getElementById(obj.id + "_search").style.position = "absolute";
  document.getElementById(obj.id + "_search").style.top = "20px";
  document.getElementById(obj.id + "_search").style.visibility = "visible";
}
function showWarning (txt) {
    document.getElementById("warning").innerHTML = txt;
}
function removeWarning () {
    document.getElementById("warning").innerHTML = "";
}

function searchRecords () {
  var q = document.getElementById("q_records").value;
  if (q.length > 0) {
    removeWarning ();
    window.location.assign("http://www.gbif.se/search/" 
			   + document.getElementById("q_records").value);
  } else {
    showWarning ("Du måste skriva in en artnamn i sökrutan ovanför.");
  }
}
function searchMaps () {
  var q = document.getElementById("q_maps").value;
  if (q.length > 0) {
    removeWarning ();
    window.location.assign("http://observer.gbif.se/search/" 
			   + document.getElementById("q_maps").value
			   + "/map/World/");
  } else {
    showWarning ("Du måste skriva in en artnamn i sökrutan ovanför.");
  }
}

function startSearching (e, type) {
  if (window.event) {
    keynum = e.keyCode;
  } else if (e.which) {
    keynum = e.which;
  }
  if (keynum == 13) {
    if (type == "r") {
      searchRecords();
    } else if (type == "m") {
      searchMaps();
    }
  }
}
function GetXmlHttpObject()
{ 
  var objXMLHttp=null;
  if (window.XMLHttpRequest)
  {
    objXMLHttp = new XMLHttpRequest();
  }
  else if (window.ActiveXObject)
  {
    objXMLHttp = new ActiveXObject("Microsoft.XMLHTTP");
  }
  return objXMLHttp;
} 

function drawMap (lat, long, width, height) {
  var url = "http://observer.gbif.se/buildsmallmap.php";

  if (!lat || !long) {
    return false;
  }

  url = url + "?la=" + lat + "&lo=" + long + "&w=" + width + "&h=" + height;

  document.getElementById("map").style.width = width + "px";
  document.getElementById("map").style.height = height + "px";
  document.getElementById("map").style.border = "1px solid #52983d";
  document.getElementById("map").innerHTML = "<iframe src=\"" + url + "\" width=\"100%\" height=\"100%\" frameborder=\"0\" marginheight=\"0\" marginwidth=\"0\" scrolling=\"no\" />";
}

function invokeCol (name, mode) {
  var url = "/parse_col.php";

  if (!name) 
  {
    return false;
  }

  var paramString = "q=" + name;

  if (mode) 
  {
    classificationMode = mode;
    paramString = paramString + "&mode=" + mode;
  }

  colXmlHttp = GetXmlHttpObject ();
  if (colXmlHttp == null)
  {
    alert ("Din webläsare stödjer inte HTTP Request");
    return false;
  }

  colXmlHttp.onreadystatechange = colInvoked;
  colXmlHttp.open ("POST", url, true);
  /* We are sending the parameters as POST so we need to do extra work */
  colXmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  colXmlHttp.setRequestHeader("Content-length", paramString.length);
  colXmlHttp.setRequestHeader("Connection", "close");
  colXmlHttp.send (paramString);

  return false;
}
function colInvoked ()
{
  if (colXmlHttp.readyState == 4 || colXmlHttp.readyState == "complete")
  {
    if (!colXmlHttp.responseText.match("1815")) {
      if (!classificationMode.match("compact")) {
        document.getElementById("col_class").style.border = "1px solid #52983d";
      }
      document.getElementById("col_class").innerHTML = colXmlHttp.responseText;
    } else {
      document.getElementById("col_class").style.visibility = "hidden";
    }
  } else {
      if (!classificationMode.match("compact")) {
        document.getElementById("col_class").style.border = "1px solid #52983d";
      }
      document.getElementById("col_class").innerHTML = "Laddar ner...";
  }
}

function printPage () {
  window.print();
}

function checkCountry(dropdown) {
  if (dropdown.selectedIndex == 0 
      || dropdown.options [dropdown.selectedIndex].text == 'Sverige'
      || dropdown.options [dropdown.selectedIndex].text == 'Sweden' ) {
    document.getElementById('sr').disabled = false;
  } else {
    document.getElementById('sr').disabled = true;
  }
}