/************************************************************************************************************
Ajax dynamic list
Copyright (C) April 2006  DTHMLGoodies.com, Alf Magne Kalleland

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library 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
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

Dhtmlgoodies.com., hereby disclaims all copyright interest in this script
written by Alf Magne Kalleland.

Alf Magne Kalleland, 2006
Owner of DHTMLgoodies.com
	
************************************************************************************************************/	

var ajaxBox_offsetX = 0;
var ajaxBox_offsetY = 0;
var ajax_list_externalFile = '/ajax-list-regions.php';	// Path to external file
var minimumLettersBeforeLookup = 3;	// Number of letters entered before a lookup is performed.
var ajax_list_keypress = new Array();
var ajax_list_objects = new Array();
var ajax_list_cachedLists = new Array();
var ajax_list_activeInput = false;
var ajax_list_activeItem;
var ajax_list_optionDivFirstItem = false;
var ajax_list_currentLetters = new Array();
var ajax_optionDiv = false;
var ajax_optionDiv_iframe = false;
var waitanswer = false;
var ajax_list_MSIE = false;
if(navigator.userAgent.indexOf('MSIE')>=0 && navigator.userAgent.indexOf('Opera')<0)ajax_list_MSIE=true;
var currentListIndex = 0;

function ajax_getTopPos(inputObj) {
	var returnValue = inputObj.offsetTop;
	while((inputObj = inputObj.offsetParent) != null) {
		returnValue += inputObj.offsetTop;
	}
	return returnValue;
}
function ajax_list_cancelEvent() {
	return false;
}

function ajax_getLeftPos(inputObj) {
  var returnValue = inputObj.offsetLeft;
  while((inputObj = inputObj.offsetParent) != null)returnValue += inputObj.offsetLeft;
  
  return returnValue;
}

function ajax_option_setValue(e,inputObj) {
	if(!inputObj)inputObj=this;
	var tmpValue = inputObj.innerHTML;
	if(ajax_list_MSIE)tmpValue = inputObj.innerText;else tmpValue = inputObj.textContent;
	if(!tmpValue)tmpValue = inputObj.innerHTML;
	ajax_list_activeInput.value = tmpValue;
	
	var hidden_values = inputObj.id.split('||');
	
	if(document.getElementById('search_latitude') && document.getElementById('search_longitude')){
		var lonlat = hidden_values[0].split(';;');
		document.getElementById('search_latitude').value = lonlat[1]; 
		document.getElementById('search_longitude').value = lonlat[0]; 
	}
	if(document.getElementById(ajax_list_activeInput.name + '_hidden'))document.getElementById(ajax_list_activeInput.name + '_hidden').value = hidden_values[0]; 
	if(document.getElementById('regiontype_hidden'))document.getElementById('regiontype_hidden').value = hidden_values[1];
	if(document.getElementById('station_'+ajax_list_activeInput.name + '_hidden'))document.getElementById('station_'+ajax_list_activeInput.name + '_hidden').value = hidden_values[0]; 
	if(document.getElementById('station_regiontype_hidden'))document.getElementById('station_regiontype_hidden').value = hidden_values[1];
	ajax_options_hide();
}

function ajax_options_hide() {
	if(ajax_optionDiv)ajax_optionDiv.style.display='none';	
	if(ajax_optionDiv_iframe)ajax_optionDiv_iframe.style.display='none';
}

function ajax_options_rollOverActiveItem(item,fromKeyBoard) {
	if(ajax_list_activeItem)ajax_list_activeItem.className='optionDiv';
	item.className='optionDivSelected';
	ajax_list_activeItem = item;
	if(fromKeyBoard){
		if(ajax_list_activeItem.offsetTop>ajax_optionDiv.offsetHeight) {
			ajax_optionDiv.scrollTop = ajax_list_activeItem.offsetTop - ajax_optionDiv.offsetHeight + ajax_list_activeItem.offsetHeight + 2 ;
		}
		if(ajax_list_activeItem.offsetTop<ajax_optionDiv.scrollTop) {
			ajax_optionDiv.scrollTop = 0;	
		}
	}
}

function ajax_option_list_buildList(letters,paramToExternalFile) {
	var str  = letters.toLowerCase();
	str = str.slice(0,3);
	ajax_optionDiv.innerHTML = '';
	ajax_list_activeItem = false;
	if(ajax_list_cachedLists[paramToExternalFile][str].length<=1){
		ajax_options_hide();
		return;			
	}
	ajax_list_optionDivFirstItem = false;
	var optionsAdded = false;
	var showresult = 0;
	
	for(var no=0;no<ajax_list_cachedLists[paramToExternalFile][str].length;no++){
		if(ajax_list_cachedLists[paramToExternalFile][str][no].length==0)continue;
		optionsAdded = true;
		var div = document.createElement('DIV');
		var items = ajax_list_cachedLists[paramToExternalFile][str][no].split(/###/gi);
		//if(ajax_list_cachedLists[paramToExternalFile][str].length==1 && ajax_list_activeInput.value == items[0]){
		if(ajax_list_cachedLists[paramToExternalFile][str].length==1 ){
			//ajax_options_hide();
			//return;						
		}
		//show only the region that match
		var tmpstr = items[1].toLowerCase();
		tmpstr =  stripVowelAccent(tmpstr);
		lgth = letters.length;
		//tmpstr = tmpstr.slice(0,lgth);
		//if (tmpstr.toLowerCase() == letters.toLowerCase() && showresult <=15) {
		if (showresult <=15 && strstr(tmpstr,letters.toLowerCase())) {
			showresult++;
			div.innerHTML = items[1];
			div.id = items[0]+'||'+items[2];
			div.className='optionDiv';
			div.onmouseover = function(){ ajax_options_rollOverActiveItem(this,false) }
			div.onclick = ajax_option_setValue;
			if(!ajax_list_optionDivFirstItem)ajax_list_optionDivFirstItem = div;
			ajax_optionDiv.appendChild(div);
		
		}
	}	
	if(optionsAdded) {
		ajax_optionDiv.style.display='block';
		if(ajax_optionDiv_iframe)ajax_optionDiv_iframe.style.display='';
	}			
}

function ajax_option_list_showContent(ajaxIndex,inputObj,paramToExternalFile,whichIndex) {
	//if(whichIndex!=currentListIndex)return;
	var letters = inputObj.value;
	var str  = inputObj.value.toLowerCase();
	str = str.slice(0,3);
	var content = ajax_list_objects[ajaxIndex].response;
	var elements = content.split('|');
	ajax_list_cachedLists[paramToExternalFile][str.toLowerCase()] = elements;
	ajax_option_list_buildList(letters,paramToExternalFile);
	
}

function ajax_option_resize(inputObj) {
	ajax_optionDiv.style.top = (ajax_getTopPos(inputObj) + inputObj.offsetHeight + ajaxBox_offsetY) + 'px';
	ajax_optionDiv.style.left = (ajax_getLeftPos(inputObj) + ajaxBox_offsetX) + 'px';
	if(ajax_optionDiv_iframe){
		ajax_optionDiv_iframe.style.left = ajax_optionDiv.style.left;
		ajax_optionDiv_iframe.style.top = ajax_optionDiv.style.top;			
	}
}

function keypressed (inputObj,paramToExternalFile,e) {
	if(e.keyCode==13 || e.keyCode==9)return;
	if(ajax_list_currentLetters[inputObj.name]==inputObj.value)return;

	var d = new Date();
	
	if(document.getElementById('station_stationlist')){
		setOptionSelected('station_stationlist', 0);
		document.getElementById('station_cityname_hidden').value = "";
		document.getElementById('station_regiontype_hidden').value = "";
		document.getElementById('station_districtid').value = "";
	}else{
		document.getElementById('cityname_hidden').value = "";
		document.getElementById('regiontype_hidden').value = "";
		document.getElementById('districtid').value = "";
	}

	//replace accent
	str = inputObj.value;

	str =  stripVowelAccent(str);

	inputObj.value = str ;
	//alert(inputObj.value);
	//if (ajax_list_keypress[0] && (d.getTime() - ajax_list_keypress[0]) > 1){
			ajax_showOptions(inputObj,paramToExternalFile,e);
	//}else{
	//		ajax_list_keypress[0] = d.getTime();
	//}
}
function stripVowelAccent(str)
{
var s=str;

var rExps=[ /[\xC0-\xC5]/g, /[\xE0-\xE5]/g,
/[\xC8-\xCB]/g, /[\xE8-\xEB]/g,
/[\xCC-\xCF]/g, /[\xEC-\xEF]/g,
/[\xD2-\xD6]/g, /[\xF2-\xF6]/g,
/[\xD9-\xDC]/g, /[\xF9-\xFC]/g];

var repChar=['A','a','E','e','I','i','O','o','U','u'];

for(var i=0; i<rExps.length; i++)
s=s.replace(rExps[i],repChar[i]);

return s;
}




function ajax_showOptions(inputObj,paramToExternalFile,e) {
	if(e.keyCode==13 || e.keyCode==9)return;
	if(ajax_list_currentLetters[inputObj.name]==inputObj.value)return;
	if(!ajax_list_cachedLists[paramToExternalFile])ajax_list_cachedLists[paramToExternalFile] = new Array();
	ajax_list_currentLetters[inputObj.name] = inputObj.value;
	if(!ajax_optionDiv){
		ajax_optionDiv = document.createElement('DIV');
		ajax_optionDiv.id = 'ajax_listOfOptions';	
		document.body.appendChild(ajax_optionDiv);
		
		if(ajax_list_MSIE){
			ajax_optionDiv_iframe = document.createElement('IFRAME');
			ajax_optionDiv_iframe.border='0';
			ajax_optionDiv_iframe.style.width = ajax_optionDiv.clientWidth + 'px';
			ajax_optionDiv_iframe.style.height = ajax_optionDiv.clientHeight + 'px';
			ajax_optionDiv_iframe.id = 'ajax_listOfOptions_iframe';
			
			document.body.appendChild(ajax_optionDiv_iframe);
		}
		
		var allInputs = document.getElementsByTagName('INPUT');
		for(var no=0;no<allInputs.length;no++){
			if(!allInputs[no].onkeyup)allInputs[no].onfocus = ajax_options_hide;
		}			
		var allSelects = document.getElementsByTagName('SELECT');
		for(var no=0;no<allSelects.length;no++){
			allSelects[no].onfocus = ajax_options_hide;
		}

		var oldonkeydown=document.body.onkeydown;
		if(typeof oldonkeydown!='function'){
			document.body.onkeydown=ajax_option_keyNavigation;
		}else{
			document.body.onkeydown=function(){
				oldonkeydown();
			ajax_option_keyNavigation() ;}
		}
		var oldonresize=document.body.onresize;
		if(typeof oldonresize!='function'){
			document.body.onresize=function() {ajax_option_resize(inputObj); };
		}else{
			document.body.onresize=function(){oldonresize();
			ajax_option_resize(inputObj) ;}
		}
			
	}
	if(inputObj.value.length<minimumLettersBeforeLookup){
		ajax_options_hide();
		return;
	}
	ajax_optionDiv.style.top = (ajax_getTopPos(inputObj) + inputObj.offsetHeight + ajaxBox_offsetY) + 'px';
	ajax_optionDiv.style.left = (ajax_getLeftPos(inputObj) + ajaxBox_offsetX) + 'px';
	if(ajax_optionDiv_iframe){
		ajax_optionDiv_iframe.style.left = ajax_optionDiv.style.left;
		ajax_optionDiv_iframe.style.top = ajax_optionDiv.style.top;			
	}
	ajax_list_activeInput = inputObj;
	ajax_optionDiv.onselectstart =  ajax_list_cancelEvent;
	currentListIndex++;
	//ajout yann
	var str  = inputObj.value.toLowerCase();
	str = str.slice(0,3);
	//if(ajax_list_cachedLists[paramToExternalFile][inputObj.value.toLowerCase()]){
	if(ajax_list_cachedLists[paramToExternalFile][str]){
		ajax_option_list_buildList(inputObj.value,paramToExternalFile,currentListIndex);			
	}else{
		var tmpIndex=currentListIndex/1;
		ajax_optionDiv.innerHTML = '';
		var ajaxIndex = ajax_list_objects.length;
		ajax_list_objects[ajaxIndex] = new sack();
		var url = ajax_list_externalFile + '?' + paramToExternalFile + '=1&letters=' + inputObj.value.replace(" ","+");
		ajax_list_objects[ajaxIndex].requestFile = url;	// Specifying which file to get
		ajax_list_objects[ajaxIndex].onCompletion = function(){ ajax_option_list_showContent(ajaxIndex,inputObj,paramToExternalFile,tmpIndex); };	// Specify function that will be executed after file has been found
		ajax_list_objects[ajaxIndex].runAJAX();		// Execute AJAX function		
	}
}

function ajax_option_keyNavigation(e) {
	if(document.all)e = event;
	if(!ajax_optionDiv)return;
	if(ajax_optionDiv.style.display=='none')return;
	if(e.keyCode==38){	// Up arrow
		if(!ajax_list_activeItem)return;
		if(ajax_list_activeItem && !ajax_list_activeItem.previousSibling)return;
		ajax_options_rollOverActiveItem(ajax_list_activeItem.previousSibling,true);
	}
	if(e.keyCode==40){	// Down arrow
		if(!ajax_list_activeItem){
			ajax_options_rollOverActiveItem(ajax_list_optionDivFirstItem,true);
		}else{
			if(!ajax_list_activeItem.nextSibling)return;
			ajax_options_rollOverActiveItem(ajax_list_activeItem.nextSibling,true);
		}
	}
	if(e.keyCode==13 || e.keyCode==9){	// Enter key or tab key
		if(ajax_list_activeItem && ajax_list_activeItem.className=='optionDivSelected')ajax_option_setValue(false,ajax_list_activeItem);
		if(e.keyCode==13)return false; else return true;
	}
	if(e.keyCode==27){	// Escape key
		ajax_options_hide();			
	}
}


document.documentElement.onclick = autoHideList;

function autoHideList(e) {
	if(document.all)e = event;
	if (e.target) source = e.target;
		else if (e.srcElement) source = e.srcElement;
		if (source.nodeType == 3) // defeat Safari bug
			source = source.parentNode;		
	if(source.tagName.toLowerCase()!='input' && source.tagName.toLowerCase()!='textarea')ajax_options_hide();
	
}
function strstr( haystack, needle, bool ) {
	var pos = 0;
	pos = haystack.indexOf( needle );
	if( pos == -1 ){
		return false;
	} else{
		if( bool ){
			return haystack.substr( 0, pos );
		} else{
			return haystack.slice( pos );
		}
	}
}