var ajaxBox_offsetX = 0;
    var ajaxBox_offsetY = 0;
    var ajax_list_externalFile = 'ajax-list-countries.php'; // Path to external file
    var minimumLettersBeforeLookup = 1; // Number of letters entered before a lookup is performed.

    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 ajax_list_MSIE = false;
    if(navigator.userAgent.indexOf('MSIE')>=0 && navigator.userAgent.indexOf('Opera')<0)ajax_list_MSIE=true;

    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;
        if(document.getElementById(ajax_list_activeInput.name + '_hidden'))document.getElementById(ajax_list_activeInput.name + '_hidden').value = inputObj.id;
        ajax_options_hide();
    }

    function ajax_options_hide()
    {
        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)
    {

        ajax_optionDiv.innerHTML = '';
        ajax_list_activeItem = false;
        if(ajax_list_cachedLists[paramToExternalFile][letters.toLowerCase()].length<=1){
            ajax_options_hide();
            return;
        }



        ajax_list_optionDivFirstItem = false;
        var optionsAdded = false;
        for(var no=0;no<ajax_list_cachedLists[paramToExternalFile][letters.toLowerCase()].length;no++){
            if(ajax_list_cachedLists[paramToExternalFile][letters.toLowerCase()][no].length==0)continue;
            optionsAdded = true;
            var div = document.createElement('DIV');
            var items = ajax_list_cachedLists[paramToExternalFile][letters.toLowerCase()][no].split(/###/gi);

            if(ajax_list_cachedLists[paramToExternalFile][letters.toLowerCase()].length==1 && ajax_list_activeInput.value == items[0]){
                ajax_options_hide();
                return;
            }


            div.innerHTML = items[items.length-1];
            div.id = items[0];
            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)
    {
        var letters = inputObj.value;
        var content = ajax_list_objects[ajaxIndex].response;
        var elements = content.split('|');
        ajax_list_cachedLists[paramToExternalFile][letters.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 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;

        if(ajax_list_cachedLists[paramToExternalFile][inputObj.value.toLowerCase()]){
            ajax_option_list_buildList(inputObj.value,paramToExternalFile);
        }else{
            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); };    // 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();
        }
    }