/*
    This is the JavaScript file for the AJAX Suggest Tutorial
    You may use this code in your own projects as long as this 
    copyright is left    in place.  All code is provided AS-IS.
    This code 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.
    
    For the rest of the code visit http://www.DynamicAJAX.com
    
    Copyright 2006 Ryan Smith / 345 Technical / 345 Group.    
*/
var mystr = "";
//Gets the browser specific XmlHttpRequest Object
function getXmlHttpRequestObject() {
    if (window.XMLHttpRequest) {
        return new XMLHttpRequest();
    } else if(window.ActiveXObject) {
        return new ActiveXObject("Microsoft.XMLHTTP");
    } else {
        alert("Your Browser Sucks!\nIt's about time to upgrade don't you think?");
    }
}
//Our XmlHttpRequest object to get the auto suggest
var searchReq = getXmlHttpRequestObject();
//Called from keyup on the search textbox.
//Starts the AJAX request.
function searchProductSuggest() {
    if (searchReq.readyState == 4 || searchReq.readyState == 0) {
        var str = escape(document.getElementById('search-text').value);
    //alert(str);
        searchReq.open("GET", 'ajax_searchresult.xml?search-text=' + str, true);
        searchReq.onreadystatechange = handleProductSearchSuggest; 
        searchReq.send(null);

    }        
}
//Called when the AJAX response is returned.
function handleProductSearchSuggest() {
    if (searchReq.readyState == 4) {
        var ss = document.getElementById('product_search_suggest');
    ss.innerHTML = '';

    if (searchReq.responseText.lastIndexOf('resDiv') > 0)
    {
    handleLayer('add',false);
    document.getElementById('product_search_suggest').style.visibility = 'visible';

    } else {
//    alert('No match...');
    document.getElementById('product_search_suggest').style.visibility = 'hidden';
    handleLayer('remove',false);
    }
            ss.innerHTML = searchReq.responseText;
//        }
//stretch content area to make full suggestbox visible because of bloody IE6
    //alert(document.getElementById('product_search_suggest').offsetHeight);
   var suggestbox_height = document.getElementById('product_search_suggest').offsetHeight;
   if (suggestbox_height >= 520){
//   document.getElementById('spacer').style.height = suggestbox_height + 90 +'px';
    } else {
//    document.getElementById('spacer').style.height = '600px';
    }
    }
}

//Mouse over function
function ProductSuggestOver(div_value) {
  clearcss('resDiv');
    div_value.className = 'result_over';
  div_value.style.color = "#000000";
}
//Mouse out function
function ProductSuggestOut(div_value) {
  clearcss('resDiv');
    div_value.className = 'result_out';
  div_value.style.color = "";  
}
function clearcss(divs)
{
var elemente = document.getElementsByName(divs);
var Anzahl = elemente.length;
for(i="0"; i < Anzahl; i++)
{
  elemente[i].style.color = "";
  elemente[i].className = "result_out";
}
}

function runProductSearch(ev, divs, action) 
{

var nextelement = "";
var prevelement = "";
var aktiv = "";
var elemente = document.getElementsByName(divs);
var target = document.getElementsByName('resDivTarget');

var ID ="";
var sessionID = document.getElementById("SID").value;
if (sessionID.length > 0){
ID = '?cpssessionid=' + sessionID;
}

var Anzahl = elemente.length;
var elementmax = Anzahl - 1;
var colorHigh = "#000000";
var b_divsExist = false;
//alert(Anzahl);
if(Anzahl > "0") 
{
b_divsExist = true;
}

for(i="0"; i < Anzahl; i++)
{
  if (elemente[i].style.color != "")
  {  
    aktiv = i; 
  } 
} 
keys=((ev.which)||(ev.keyCode));
switch(keys) {
//no functions:
 case 16: break; //shift
 case 17: break; //crtl
 case 18: break; //alt
 case 33: break; //page up
 case 34: break; //page down
 case 39: break; //arrow right
 case 37: break; //arrow left
// TAB-key
 case 9:
    if(aktiv >= "0" && aktiv <= elementmax && action == "down")
      { 
//        var id_div = document.getElementById('id_div_'+aktiv);
//        setSearch(id_div.innerHTML, '...');
window.location = target[aktiv].innerHTML + ID;

      }  
   break;
 case 13:
// enter-key 
//    if(aktiv >= "0" && aktiv <= elementmax)
//      { 
//        var id_div = document.getElementById('id_div_'+aktiv);
//        setSearch(id_div.innerHTML, '...');
//document.getElementByID('search-form').disabled = "true";
//elemente[aktiv].click();
//      } else {
      //do nothing
//      }  
//   break;   
 case 38:
   //alert('up arrow');
   if(aktiv >= "0" && aktiv <= elementmax && action == "up")
   {
      prevelement = aktiv - 1;
      if (prevelement == "01") prevelement = 1;
      if (prevelement == "-1") prevelement = elementmax;
      elemente[aktiv].style.color = "";
      elemente[aktiv].className = "result_out";
      elemente[prevelement].style.color = colorHigh;
      elemente[prevelement].className = "result_over";
      //elemente[prevelement].scrollIntoView(true);
   } else {
      if(b_divsExist && action == "up")
      {
        elemente[0].style.color = colorHigh;
        elemente[0].className = "result_over";
        //elemente[0].scrollIntoView(false);
      }
   }
   break;
 case 40:
   //alert('down arrow ' + aktiv);
   if(aktiv >= "0" && aktiv <= elementmax  && action == "up")
   {
      nextelement = aktiv + 1;
      if (nextelement == "01") nextelement = 1;
      if (nextelement == Anzahl) nextelement = 0;
      elemente[aktiv].style.color = "";
      elemente[aktiv].className = "result_out";
      elemente[nextelement].style.color = colorHigh;
      elemente[nextelement].className = "result_over";
      //elemente[nextelement].scrollIntoView(false);
   } else {
      if(b_divsExist && action == "up")
      {
        elemente[0].style.color = colorHigh;
        elemente[0].className = "result_over";
        //elemente[0].scrollIntoView(false);
      }
   }
      
   break;
   default:
   if (action == "up"){
    var searchString = document.getElementById('search-text').value;
    if (searchString.length > 0){
    handleLayer('add',false);
    window.setTimeout("searchProductSuggest()",1500); 
    document.getElementById('product_search_suggest').style.visibility = 'visible';
    document.getElementById('product_search_suggest').innerHTML = '<div name="my_default_div" id="my_default_div" class="my_default_div"></div>';
    //document.getElementById('search_message').innerHTML = ajax_msg_searching;
    } else {
    document.getElementById('product_search_suggest').style.visibility = 'hidden';
    handleLayer('remove',false);
    }
    }
   break;
  }
}

//Click function
function setProductSearch(filename) {

var ID ="";
var sessionID = document.getElementById("SID").value;
if (sessionID.length > 0){
ID = '?cpssessionid=' + sessionID;
}

document.location = filename + ID;
}