jQuery.autocomplete = function(input, options) {
    var me = this;
    var $input = $(input).attr("autocomplete", "off");
    if (options.inputClass) $input.addClass(options.inputClass);
    var results = document.createElement("div");
    var $results = $(results);
    $results.hide().addClass(options.resultsClass).css("position", "absolute");
    if (options.width > 0) $results.css("width", options.width);
    $("body").append(results);
    input.autocompleter = me;
    var timeout = null;
    var prev = "";
    var active = -1;
    var cache = {};
    var keyb = false;
    var hasFocus = false;
    var lastKeyPressCode = null;
    function flushCache() {
        cache = {};
        cache.data = {};
        cache.length = 0
    };
    flushCache();
    if (options.data != null) {
        var sFirstChar = "",
        stMatchSets = {},
        row = [];
        if (typeof options.url != "string") options.cacheLength = 1;
        for (var i = 0; i < options.data.length; i++) {
            row = ((typeof options.data[i] == "string") ? [options.data[i]] : options.data[i]);
            if (row[0].length > 0) {
                sFirstChar = row[0].substring(0, 1).toLowerCase();
                if (!stMatchSets[sFirstChar]) stMatchSets[sFirstChar] = [];
                stMatchSets[sFirstChar].push(row)
            }
        }
        for (var k in stMatchSets) {
            options.cacheLength++;
            addToCache(k, stMatchSets[k])
        }
    }
    $input.keyup(function(e) {
        lastKeyPressCode = e.keyCode;
        switch (e.keyCode) {
            case 38:
                e.preventDefault();
                moveSelect(-1);
                break;
            case 40:
                e.preventDefault();
                moveSelect(1);
                break;
            case 9:
            case 13:
                if (selectCurrent()) {
                    $input.get(0).blur();
                    e.preventDefault()
                }
                break;
            default:
                active = -1;
                if (timeout) clearTimeout(timeout);
                timeout = setTimeout(function() {
                    onChange()
                },
            options.delay);
                break
        }
    }).focus(function() {
        hasFocus = true
    }).blur(function() {
        hasFocus = false;
        hideResults()
    });
    hideResultsNow();
    function onChange() {
        if (lastKeyPressCode == 46 || (lastKeyPressCode > 8 && lastKeyPressCode < 32)) return $results.hide();
        var v = $input.val();
        if (v == prev) return;
        prev = v;
        if (v.length >= options.minChars) {
            $input.addClass(options.loadingClass);
            requestData(v)
        } else {
            $input.removeClass(options.loadingClass);
            $results.hide()
        }
    };
    function moveSelect(step) {
        var lis = $("li", results);
        if (!lis) return;
        active += step;
        if (active < 0) {
            active = 0
        } else if (active >= lis.size()) {
            active = lis.size() - 1
        }
        lis.removeClass("ac_over");
        $(lis[active]).addClass("ac_over");
        var v = $.trim($(lis[active])[0].selectValue ? $(lis[active])[0].selectValue : $(lis[active])[0].innerHTML);
        $input.val(v);
    };
    function selectCurrent() {
        var li = $("li.ac_over", results)[0];
        if (!li) {
            var $li = $("li", results);
            if (options.selectOnly) {
                if ($li.length == 1) li = $li[0]
            } else if (options.selectFirst) {
                li = $li[0]
            }
        }
        if (li) {
            selectItem(li);
            return true
        } else {
            return false
        }
    };
    function selectItem(li) {
        if (!li) {
            li = document.createElement("li");
            li.extra = [];
            li.selectValue = ""
        }
        var v = $.trim(li.selectValue ? li.selectValue : li.innerHTML);

        input.lastSelected = v;
        prev = v;
        $results.html("");
        $input.val(v);
        hideResultsNow();
        if (options.onItemSelect) setTimeout(function() {
            options.onItemSelect(li)
        },
        1)
    };
    function createSelection(start, end) {
        var field = $input.get(0);
        if (field.createTextRange) {
            var selRange = field.createTextRange();
            selRange.collapse(true);
            selRange.moveStart("character", start);
            selRange.moveEnd("character", end);
            selRange.select()
        } else if (field.setSelectionRange) {
            field.setSelectionRange(start, end)
        } else {
            if (field.selectionStart) {
                field.selectionStart = start;
                field.selectionEnd = end
            }
        }
        field.focus()
    };
    function autoFill(sValue) {
        if (lastKeyPressCode != 8) {
            $input.val($input.val() + sValue.substring(prev.length));
            createSelection(prev.length, sValue.length)
        }
    };
    function showResults() {
        var pos = findPos(input);
        var iWidth = (options.width > 0) ? options.width : $input.width();
        $results.css({
            width: parseInt(iWidth) + "px",
            top: (pos.y + input.offsetHeight) + "px",
            left: pos.x + "px"
        }).show()
    };
    function hideResults() {
        if (timeout) clearTimeout(timeout);
        timeout = setTimeout(hideResultsNow, 200)
    };
    function hideResultsNow() {
        if (timeout) clearTimeout(timeout);
        $input.removeClass(options.loadingClass);
        if ($results.is(":visible")) {
            $results.hide()
        }
        if (options.mustMatch) {
            var v = $input.val();
            if (v != input.lastSelected) {
                selectItem(null)
            }
        }
    };
    function receiveData(q, data) {
        if (data) {
            $input.removeClass(options.loadingClass);
            results.innerHTML = "";
            if (!hasFocus || data.length == 0) return hideResultsNow();
            if ($.browser.msie) {
                $results.append(document.createElement('iframe'))
            }
            results.appendChild(dataToDom(data));
            if (options.autoFill && ($input.val().toLowerCase() == q.toLowerCase())) autoFill(data[0][0]);
            showResults()
        } else {
            hideResultsNow()
        }
    };
    function parseData(data) {

        if (!data) return null;

        var total = [];
        var parsed = [];
        var parsed1 = [];
        var parsed2 = [];

        if (data.indexOf(";") >= 0) {
            var rows = data.split(options.rowSeparator);
            var row1 = rows[0].split(options.lineSeparator);
            var row2 = rows[1].split(options.lineSeparator);



            for (var i = 0; i < row1.length; i++) {
                var row = $.trim(row1[i]);
                if (row) {
                    parsed1[parsed1.length] = row.split(options.cellSeparator)
                }
            }

            for (var i = 0; i < row2.length; i++) {
                var row = $.trim(row2[i]);
                if (row) {
                    parsed2[parsed2.length] = row.split(options.cellSeparator)
                }
            }
            total = [parsed1, parsed2];
        } else {
            var rows = data.split(options.lineSeparator);
            for (var i = 0; i < rows.length; i++) {
                var row = $.trim(rows[i]);
                if (row) {
                    parsed[parsed.length] = row.split(options.cellSeparator)
                }
            }
            total = [parsed];
        }

        return total;
    };

    function dataToDom(data) {
        var ul = document.createElement("ul");
        var num = data.length;

        if ((options.maxItemsToShow > 0) && (options.maxItemsToShow < num)) num = options.maxItemsToShow;

        if (num == 2) {
            //二手下拉
            if (!data[0] == "") {

                var dt = data[0];
                for (var k = 0; k < dt.length; k++) {
                    var row = dt[k];

                    if (!row) continue;
                    var li = document.createElement("li");

                    var tempstring = "<dl><dt><em>" + row[3] + "</em>   <em>在</em>" + row[1] + "<em>分类中查找</em></dt></dl>";

                    li.innerHTML = tempstring;

                    li.selectValue = row[3];
                    li.selectType = row[0];
                    //li.selectText = row[3];
                    if (row.length > 1) {
                        extra = [];
                        for (var j = 1; j < row.length; j++) {
                            extra[extra.length] = row[j];
                        }
                    }
                    li.extra = extra;
                    ul.appendChild(li);
                    $(li).hover(function() {

                        $("li", ul).removeClass("ac_over");
                        $(this).addClass("ac_over");
                        active = $("li", ul).indexOf($(this).get(0))
                    },
                 function() {
                     $(this).removeClass("ac_over")
                 }).click(function(e) {
                     debugger;
                     e.preventDefault();
                     e.stopPropagation();
                     selectItem(this);

                     var url = "/second/searchlist.aspx?" + this.selectType + "=" + this.selectValue + "";
                     url = encodeURI(url);
                     //window.location.href = url;
                     window.open(url);
                 });
                }
            }

            var dtli = data[1];
            for (var i = 0; i < dtli.length; i++) {
                var row = dtli[i];
                if (!row) continue;
                var li = document.createElement("li");

                if (row[0].indexOf(row[2]) < 0) {

                    li.innerHTML = "<dl><dt style='float:left'><em>" + row[0] + "</em></dt><dd style='float:right'>约 " + row[1] + " 套</dd></dl>";
                    li.selectValue = row[0];
                    li.selectType = row[3];

                } else {

                    li.innerHTML = "<dl><dt style='float:left'><em>" + row[2] + "</em>" + row[0].replace(row[2], '') + "</dt><dd style='float:right'>约 " + row[1] + " 套</dd></dl>";
                    li.selectValue = row[0];
                   
                    li.selectType = row[3];

                }

                var extra = null;
                if (row.length > 1) {
                    extra = [];
                    for (var j = 1; j < row.length; j++) {
                        extra[extra.length] = row[j]
                    }
                }
                li.extra = extra;
                ul.appendChild(li);
                $(li).hover(function() {
                    $("li", ul).removeClass("ac_over");
                    $(this).addClass("ac_over");
                    active = $("li", ul).indexOf($(this).get(0))
                },
            function() {
                $(this).removeClass("ac_over")
            }).click(function(e) {

                e.preventDefault();
                e.stopPropagation();
                selectItem(this);
                var url;
                if (li.selectType == "1") {
                    url = "/second/searchlist.aspx?keyword=" + this.selectValue + "";
                } else if (li.selectType == "3") {
                   url = "/second/indexz.aspx?keyword=" + this.selectValue + "";
                }
                
                url = encodeURI(url);
                window.open(url);

            })
            }
        } else {
            //新房
            var dt = data[0];
            for (var i = 0; i < dt.length; i++) {
                var row = dt[i];
                if (!row) continue;
                var li = document.createElement("li");
                if (options.formatItem) {
                    li.innerHTML = options.formatItem(row, i, num);
                    li.selectValue = row[0];
                } else {
                    li.innerHTML = row[0];
                    li.selectValue = row[0];
                }
                var extra = null;
                if (row.length > 1) {
                    extra = [];
                    for (var j = 1; j < row.length; j++) {
                        extra[extra.length] = row[j];
                    }
                }
                li.extra = extra;
                ul.appendChild(li);
                $(li).hover(function() {
                    $("li", ul).removeClass("ac_over");
                    $(this).addClass("ac_over");
                    active = $("li", ul).indexOf($(this).get(0))
                },
            function() {
                $(this).removeClass("ac_over")
            }).click(function(e) {

                e.preventDefault();
                e.stopPropagation();
                selectItem(this)

            })
            }
        }
        return ul
    };
    function requestData(q) {

        if (!options.matchCase) q = q.toLowerCase();
        var data = options.cacheLength ? loadFromCache(q) : null;
        if (data) {
            receiveData(q, data)
        } else if ((typeof options.url == "string") && (options.url.length > 0)) {
            $.get(makeUrl(q),
            function(data) {

                data = parseData(data);
                addToCache(q, data);
                receiveData(q, data)
            })
        } else {
            $input.removeClass(options.loadingClass)
        }
    };
    function makeUrl(q) {
        var url = options.url + "?q=" + escape(q);
        for (var i in options.extraParams) {
            url += "&" + i + "=" + escape(options.extraParams[i])
        }
        return url
    };
    function loadFromCache(q) {
        if (!q) return null;
        if (cache.data[q]) return cache.data[q];
        if (options.matchSubset) {
            for (var i = q.length - 1; i >= options.minChars; i--) {
                var qs = q.substr(0, i);
                var c = cache.data[qs];
                if (c) {
                    var csub = [];
                    for (var j = 0; j < c.length; j++) {
                        var x = c[j];
                        var x0 = x[0];
                        if (matchSubset(x0, q)) {
                            csub[csub.length] = x
                        }
                    }
                    return csub
                }
            }
        }
        return null
    };
    function matchSubset(s, sub) {
        if (!options.matchCase) s = s.toLowerCase();
        var i = s.indexOf(sub);
        if (i == -1) return false;
        return i == 0 || options.matchContains
    };
    this.flushCache = function() {
        flushCache()
    };
    this.setExtraParams = function(p) {
        options.extraParams = p
    };
    this.findValue = function() {
        var q = $input.val();
        if (!options.matchCase) q = q.toLowerCase();
        var data = options.cacheLength ? loadFromCache(q) : null;
        if (data) {
            findValueCallback(q, data)
        } else if ((typeof options.url == "string") && (options.url.length > 0)) {
            $.get(makeUrl(q),
            function(data) {
                data = parseData(data);
                addToCache(q, data);
                findValueCallback(q, data)
            })
        } else {
            findValueCallback(q, null)
        }
    };
    function findValueCallback(q, data) {
        if (data) $input.removeClass(options.loadingClass);
        var num = (data) ? data.length : 0;
        var li = null;
        for (var i = 0; i < num; i++) {
            var row = data[i];
            if (row[0].toLowerCase() == q.toLowerCase()) {
                li = document.createElement("li");
                if (options.formatItem) {
                    li.innerHTML = options.formatItem(row, i, num);
                    li.selectValue = row[0]
                } else {
                    li.innerHTML = row[0];
                    li.selectValue = row[0]
                }
                var extra = null;
                if (row.length > 1) {
                    extra = [];
                    for (var j = 1; j < row.length; j++) {
                        extra[extra.length] = row[j]
                    }
                }
                li.extra = extra
            }
        }
        if (options.onFindValue) setTimeout(function() {
            options.onFindValue(li)
        },
        1)
    };
    function addToCache(q, data) {
        if (!data || !q || !options.cacheLength) return;
        if (!cache.length || cache.length > options.cacheLength) {
            flushCache();
            cache.length++
        } else if (!cache[q]) {
            cache.length++
        }
        cache.data[q] = data
    };
    function findPos(obj) {
        var curleft = obj.offsetLeft || 0;
        var curtop = obj.offsetTop || 0;
        while (obj = obj.offsetParent) {
            curleft += obj.offsetLeft;
            curtop += obj.offsetTop
        }
        return {
            x: curleft,
            y: curtop
        }
    }
};
jQuery.fn.autocomplete = function(url, options, data) {

    options = options || {};
    options.url = url;
    options.data = ((typeof data == "object") && (data.constructor == Array)) ? data : null;
    options.inputClass = options.inputClass || "ac_input";
    options.resultsClass = options.resultsClass || "ac_results";
    options.lineSeparator = options.lineSeparator || "\n";
    options.cellSeparator = options.cellSeparator || "|";
    options.rowSeparator = options.rowSeparator || ";";
    options.minChars = options.minChars || 1;
    options.delay = options.delay || 400;
    options.matchCase = options.matchCase || 0;
    options.matchSubset = options.matchSubset || 1;
    options.matchContains = options.matchContains || 0;
    options.cacheLength = options.cacheLength != undefined ? options.cacheLength : 0;
    options.mustMatch = options.mustMatch || 0;
    options.extraParams = options.extraParams || {};
    options.loadingClass = options.loadingClass || "ac_loading";
    options.selectFirst = options.selectFirst || false;
    options.selectOnly = options.selectOnly || false;
    options.maxItemsToShow = options.maxItemsToShow || -1;
    options.autoFill = options.autoFill || false;
    options.width = parseInt(options.width, 10) || 0;
    this.each(function() {
        var input = this;
        new jQuery.autocomplete(input, options)
    });
    return this
};
jQuery.fn.autocompleteArray = function(data, options) {
    return this.autocomplete(null, options, data)
};
jQuery.fn.indexOf = function(e) {
    for (var i = 0; i < this.length; i++) {
        if (this[i] == e) return i
    }
    return -1
};