/*
// +----------------------------------------------------------------------+
// | Copyright (c) 2004 Bitflux GmbH                                      |
// +----------------------------------------------------------------------+
// | Licensed under the Apache License, Version 2.0 (the "License");      |
// | you may not use this file except in compliance with the License.     |
// | You may obtain a copy of the License at                              |
// | http://www.apache.org/licenses/LICENSE-2.0                           |
// | Unless required by applicable law or agreed to in writing, software  |
// | distributed under the License is distributed on an "AS IS" BASIS,    |
// | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or      |
// | implied. See the License for the specific language governing         |
// | permissions and limitations under the License.                       |
// +----------------------------------------------------------------------+
// | Author: Bitflux GmbH <devel@bitflux.ch>                              |
// +----------------------------------------------------------------------+

*/
var liveSearchReq = false;
var t = null;
var liveSearchLast = "";
var isIE = false;
var frmName = 'frmSearch';
var fieldName = 'livesearch';
var highlight = null;
// on !IE we only have to initialize it once
if (window.XMLHttpRequest) {
    liveSearchReq = new XMLHttpRequest();
}

window.onload = function () { liveSearchInit(); }

function liveSearchInit() {
    f = document.getElementById(fieldName);
    if (navigator.userAgent.indexOf("Safari") > 0) {
        f.addEventListener("keydown",liveSearchKeyPress,false);
        f.setAttribute("autocomplete","off");
    } else if (navigator.product == "Gecko") {
        f.addEventListener("keypress",liveSearchKeyPress,false);
        f.setAttribute("autocomplete","off");
    } else {
        f.attachEvent('onkeydown',liveSearchKeyPress);
        isIE = true;
        f.setAttribute("autocomplete","off");
    }
}

function liveSearchKeyPress(event) {
    if (event.keyCode == 40 ) {
        //KEY DOWN
        highlight = document.getElementById("LSHighlight");
        if (!highlight) {
            highlight = document.getElementById("LSRes").firstChild;
        } else {
            highlight.removeAttribute("id");
            highlight = highlight.nextSibling;
        }
        if (highlight) {
            highlight.setAttribute("id","LSHighlight");
        }
        if (!isIE) { event.preventDefault(); }
    } else if (event.keyCode == 38 ) {
        //KEY UP
        highlight = document.getElementById("LSHighlight");
        if (!highlight) {
            highlight = document.getElementById("LSRes").lastChild;
        } else {
            highlight.removeAttribute("id");
            highlight = highlight.previousSibling;
        }
        if (highlight) {
                highlight.setAttribute("id","LSHighlight");
        }
        if (!isIE) { event.preventDefault(); }
    } else if (event.keyCode == 27) {
        //ESC
        highlight = document.getElementById("LSHighlight");
        if (highlight) {
            highlight.removeAttribute("id");
        }
        document.getElementById("LSResult").style.display = "none";
    }
}
function liveSearchStart() {
    f = document.getElementById(fieldName);
    if (f.value.length > 1) {
        if (t) {
            window.clearTimeout(t);
        }
        t = window.setTimeout("liveSearchDoSearch()",500);
    }
}

function liveSearchDoSearch() {
    f = document.getElementById(fieldName);
    if (liveSearchLast != f.value) {
        if (liveSearchReq && liveSearchReq.readyState < 4) {
            liveSearchReq.abort();
        }
        if ( f.value == "") {
            document.getElementById("LSResult").style.display = "none";
            highlight = document.getElementById("LSHighlight");
            if (highlight) {
                highlight.removeAttribute("id");
            }
            return false;
        }
        if (window.XMLHttpRequest) {
        // branch for IE/Windows ActiveX version
        } else if (window.ActiveXObject) {
            liveSearchReq = new ActiveXObject("Microsoft.XMLHTTP");
        }
        liveSearchReq.onreadystatechange= liveSearchProcessReqChange;
        liveSearchReq.open("GET", baseUrl + "/xmlsearch.php?type=livesearch&q=" + f.value);
        liveSearchLast = f.value;
        liveSearchReq.send(null);
    }
}

function liveSearchProcessReqChange() {
    if (liveSearchReq.readyState == 1) {
        showSearchingIcon();
    }
    if (liveSearchReq.readyState == 4) {
        var  res = document.getElementById("LSResult");
        if (liveSearchReq.responseText != '') {
            res.firstChild.innerHTML = liveSearchReq.responseText;
            if (isIE) addHover(res.firstChild);
            if (liveSearchReq.responseText.indexOf('LSRow') > -1) {
                res.style.display = "block";
            } else {
                res.style.display = "none";
            }

        }
        setTimeout('hideSearchingIcon()', 500);
    }
}

function liveSearchSubmit() {
    var highlight = document.getElementById("LSHighlight");
    if (highlight && highlight.firstChild.firstChild) {
        keyword = highlight.firstChild.firstChild.nodeValue;
        document.getElementById('livesearch').value = keyword;
        document.forms.frmSearch.action = baseUrl + searchUrl + keyword;
        highlight.removeAttribute("id");
        liveSearchLast = keyword;
        closeResults();
        document.forms.frmSearch.submit();
        return false;
    } else {
        keyword = document.getElementById('livesearch').value;
        document.forms.frmSearch.action = baseUrl + searchUrl + keyword;
        return true;
    }
}

function closeResults() {
    document.getElementById("LSResult").style.display = "none";
}

function hideSearchingIcon() {
    if (document.getElementById('imgSearching')) {
        document.getElementById('imgSearching').style.display = 'none';
    }
    if (document.getElementById('imgNotSearching')) {
        document.getElementById('imgNotSearching').style.display = 'inline';
    }
}

function showSearchingIcon() {
    if (document.getElementById('imgSearching')) {
        document.getElementById('imgSearching').style.display = 'inline';
    }
    if (document.getElementById('imgNotSearching')) {
        document.getElementById('imgNotSearching').style.display = 'none';
    }
}

function addHover(start) {
    for (i=0; i<start.firstChild.childNodes.length; i++) {
        if (start.firstChild.childNodes[i].className == 'LSRow') {
            start.firstChild.childNodes[i].onmouseover=function() {
                this.className+="_over";
                if (highlight) {
                    highlight.removeAttribute("id");
                }
            }
            start.firstChild.childNodes[i].onmouseout=function() {
                this.className=this.className.replace("_over", "");
            }
        }
    }
}