;(function($){

$.fn.jqSearch = function (options) {	

    var defaults = {

        TxtVal: "输入关键词搜索！",

        KeyTxt1: "输入关键词搜索！",

        KeyTxt2: "输入的关键词字数不要过多！",

        KeyTxt3: "您输入的内容存在特殊字符！",

        KeyId: "topkey",

        KeyUrl: "#",

        OtherUrl: "",

        OtherParams: "",

        OtherTxtVal: "请选中筛选或输入关键词搜索！",

        KeyHref: "key",

        Static: false

    };

    var opts = $.extend(defaults, options);



    return this.each(function () {

        _this = $(this);

        if ($("#" + opts.KeyId).val() == "") {

            $("#" + opts.KeyId).val(opts.TxtVal);

        }

        $("#" + opts.KeyId).focus(function () {

        	_this.addClass("focus");

        	$(this).addClass("focus");

            if ($(this).val() == opts.TxtVal) {

                $(this).val("");

            }

        });

        $("#" + opts.KeyId).blur(function () {

        	_this.removeClass("focus");

        	$(this).removeClass("focus");

            if ($(this).val() == "") {

                $(this).val(opts.TxtVal);

            }

        });

        function GoSearchUrl() {

            var searchinput = document.getElementById(opts.KeyId);

            var isNull = true;

            //静态

            var Staticlinks = opts.KeyUrl;

            if (typeof (opts.OtherParams) == "function") {

                var params = opts.OtherParams();

                for (var property in params) {

                    isNull = false;

                    if (opts.Static) {

                        Staticurl += "_" + property + "_" + params[property];

                    } else {

                        if (opts.OtherUrl != "") {

                            opts.OtherUrl = appendUrlParmFun(opts.OtherUrl, property, params[property]);

                        } else {

                            opts.KeyUrl = appendUrlParmFun(opts.KeyUrl, property, params[property]);

                        }

                    }

                }

            }

            if (typeof (opts.OtherParams) == "function" && isNull && (searchinput.value == "" || searchinput.value == opts.TxtVal)) {

                alert(opts.OtherTxtVal);

                return false;

            }

            if (!isNull && opts.OtherUrl != "") {

                window.location = opts.OtherUrl;

                return false;

            }

            if (isNull && (searchinput.value == "" || searchinput.value == opts.TxtVal)) {

                alert(opts.KeyTxt1);

                searchinput.focus();

                return false;

            }

            if (isNull && (searchinput.value == "" || searchinput.value == opts.TxtVal)) {

                alert(opts.KeyTxt1);

                searchinput.focus();

                return false;

            }

            if (searchinput.value.length > 50) {

                alert(opts.KeyTxt2);

                searchinput.focus();

                return false;

            }

            var pattern = new RegExp("[`~!@#$^&*()=|{}':;',\\[\\].<>/?~！@#￥……&*（）—|{}【】‘；：”“'。，、？]");

            if (pattern.test(searchinput.value)) {

                alert(opts.KeyTxt3);

                searchinput.focus();

                return false;

            }

            if (!(searchinput.value == "" || searchinput.value == opts.TxtVal)) {

                if (opts.Static) {

                    //静态

                    Staticlinks = opts.KeyUrl;

                    Staticurl = "_" + opts.KeyHref + "_" + searchinput.value + ".html"

                    Staticlinks = Staticlinks.replace(".html", Staticurl);

                    window.location = Staticlinks;

                } else {

                    //动态

                    if (opts.KeyUrl.indexOf("?") == -1) {

                        window.location = opts.KeyUrl + "?" + opts.KeyHref + "=" + escape(searchinput.value);



                    } else {

                        window.location = opts.KeyUrl + "&" + opts.KeyHref + "=" + escape(searchinput.value);

                    }

                }

            } else {

                if (opts.Static) {

                    window.location = Staticlinks;

                }

                else {

                    window.location = opts.KeyUrl;

                }

            }



            return true;

        }



        function entersearch() {

            var event = window.event || arguments.callee.caller.arguments[0];

            if (event.keyCode == 13) {

                GoSearchUrl();

            }

        }



        function checkComments() {

            var event = window.event || arguments.callee.caller.arguments[0];

            if ((event.keyCode > 32 && event.keyCode < 48) || (event.keyCode > 57 && event.keyCode < 65) || (event.keyCode > 90 && event.keyCode < 97)) {

                event.returnValue = false;

            }

        }



        function stripscript(s) {

            var pattern = new RegExp("[`~!@#$^&*()=|{}':;',\\[\\].<>/?~！@#￥……&*（）&mdash;—|{}【】‘；：”“'。，、？]");

            var rs = "";

            for (var i = 0; i < s.length; i++) {

                rs = rs + s.substr(i, 1).replace(pattern, '');

            }

            return rs;

        }



        function appendUrlParmFun(url, key, value) {

            var arrayParams = url.split("?");

            var result = arrayParams[0] + "?";

            if (url.indexOf("?") > 0) {

                var parms = arrayParams[1].split("&");

                var exsit = false;

                for (var i = 0; i < parms.length; i++) {

                    var param = parms[i].split("=");

                    if (param[0] == key) {

                        exsit = true;

                        result += param[0] + "=" + value + "&"; //修改参数

                    } else {

                        result += param[0] + "=" + param[1] + "&"; //保持原样

                    }

                }

                if (exsit == false) {

                    result += key + "=" + value + "&"; //不存在时，附加参数

                }



            } else {

                result += key + "=" + value;

            }

            result = result.substring(result.length - 1, result.length) == "&" ? result.substring(0, result.length - 1) : result;

            return result;

        }



        _this.click(function () {

            GoSearchUrl()

        });



        $("#" + opts.KeyId).keydown(function () {

            entersearch()

        });

    })

}

})(jQuery);