/*
javascript incude file 0.84 versios
publish date:2007/06/04
coder by nt2003
*/

/* xmlhttp状态显示字符 */
var xml_http_building_link = '建立连接';
var xml_http_sending = '发送命令';
var xml_http_loading = '接收回传';
var xml_http_data_in_processed = '处理数据';
var xml_http_load_failed = '服务器响应错,错误代码:[err:errcode]';

/* 浏览器判断 */
var useragent = navigator.useragent.tolowercase();
var is_webtv = useragent.indexof('webtv') != -1;
var is_kon = useragent.indexof('konqueror') != -1;
var is_mac = useragent.indexof('mac') != -1;
var is_saf = useragent.indexof('applewebkit') != -1 || navigator.vendor == 'apple computer, inc.';
var is_opera = useragent.indexof('opera') != -1 && opera.version();
var is_moz = (navigator.product == 'gecko' && !is_saf) && useragent.substr(useragent.indexof('firefox') + 8, 3);
var is_ns = useragent.indexof('compatible') == -1 && useragent.indexof('mozilla') != -1 && !is_opera && !is_webtv && !is_saf;
var is_ie = (useragent.indexof('msie') != -1 && !is_opera && !is_saf && !is_webtv) && useragent.substr(useragent.indexof('msie') + 5, 3);

/* 基础函数 */
function $(id) {
    return document.getelementbyid(id);
}

function in_array(targetstr, sourcearry) {
    if (typeof sourcearry == 'string') {
        for (var i in sourcearry) {
            if (sourcearry[i] == targetstr)
            { return true; }
        }
    }
    return false;
}

function add2array(targetarry, newstr) {
    targetarry[targetarry.length] = newstr;
    return targetarry.length;
}

function del4array(targetarry, newstr) {
    for (i in targetarry) {
        if (targetarry[i] == newstr) {
            targetarry[i] = null;
        }
    }
    return targetarry;
}

var ajaxs = new array();
function ajaxrequest(recvtype, targetid) {
    var ajax = new object();
    ajax.targetid = targetid ? document.getelementbyid(targetid) : null;
    ajax.targeturl = '';
    ajax.para = '';
    ajax.paratype = '';
    ajax.recvtype = recvtype ? recvtype : 'xml';
    ajax.resulthandle = null;
    ajax.labelname = '';
    ajax.currentpage = '';
    ajax.sourcename = '';
    ajax.total = '';
    ajax.pagesize = '';

    ajax.createxmlhttprequest = function () {
        var oxmlhttp = false;
        if (window.xmlhttprequest) {
            oxmlhttp = new xmlhttprequest();
            if (oxmlhttp.overridemimetype) {
                oxmlhttp.overridemimetype('text/xml');
            }
        } else if (window.activexobject) {
            var xmlobjectarry = ["microsoft.xmlhttp", "msxml.xmlhttp", "msxml2.xmlhttp.7.0", "msxml2.xmlhttp.6.0", "msxml2.xmlhttp.5.0", "msxml2.xmlhttp.4.0", "msxml2.xmlhttp.3.0", "msxml2.xmlhttp"];
            for (var i = 0; i < xmlobjectarry.length; i++) {
                try {
                    oxmlhttp = new activexobject(xmlobjectarry[i]);
                    if (oxmlhttp) {
                        return oxmlhttpt;
                    }
                } catch (oerror) { }
            }
        }
        return oxmlhttp;
    }
    ajax.xmlhttprequest = ajax.createxmlhttprequest();

    ajax.processhandle = function () {
        if (ajax.targetid) {
            ajax.targetid.style.display = '';
        }
        if (ajax.xmlhttprequest.readystate == 1 && ajax.targetid) {
            ajax.targetid.innerhtml = xml_http_building_link;
        } else if (ajax.xmlhttprequest.readystate == 2 && ajax.targetid) {
            ajax.targetid.innerhtml = xml_http_sending;
        } else if (ajax.xmlhttprequest.readystate == 3 && ajax.targetid) {
            ajax.targetid.innerhtml = xml_http_loading;
        } else if (ajax.xmlhttprequest.readystate == 4) {
            if (ajax.xmlhttprequest.status == 200) {
                ajaxs = del4array(ajaxs, ajax.targeturl);
                if (ajax.recvtype == 'html') {
                    ajax.resulthandle(ajax.xmlhttprequest.responsetext);
                } else if (ajax.recvtype == 'xml') {
                    if (window.xmlhttprequest) {
                        ajax.resulthandle(ajax.xmlhttprequest.responsetext);
                    }
                    else {
                        ajax.resulthandle(ajax.xmlhttprequest.responsexml);
                    }
                }
            } else {
                if (ajax.targetid) {
                    ajax.targetid.innerhtml = xml_http_load_failed.replace('[err:errcode]', ajax.xmlhttprequest.status);
                }
            }
        }
    }

    ajax.createxmldom = function (xmlstry) {
        var oxmldom = false;
        if (is_ie) {
            var aversions = ["microsoft.xmldom", "msxml2.domdocument.6.0", "msxml2.domdocument.5.0", "msxml2.domdocument.4.0", "msxml2.domdocument.3.0", "msxml2.domdocument"];
            for (var i = 0; i < aversions.length; i++) {
                try {
                    oxmldom = new activexobject(aversions[i]);
                    if (oxmldom) {
                        break;
                    }
                }
                catch (oerror) { }
            }
        }
        else {
            oxmldom = document.implementation.createdocument("", "", null);
        }

        if (xmlstry != null) {
            oxmldom.async = false;
            if (!is_ie) {
                var oparser = new domparser();
                oxmldom = oparser.parsefromstring(xmlstry, "text/xml");
            }
            else {
                if (is_ie == '7.0') {
                    oxmldom.loadxml(xmlstry);
                }
                else {
                    if (window.xmlhttprequest) {
                        oxmldom.loadxml(xmlstry);
                    } else {
                        oxmldom.load(xmlstry);
                    }
                }
            }
        }

        return oxmldom;
    }

    ajax.get = function (targeturl, resulthandle) {
        if (in_array(targeturl, ajaxs)) {
            return false;
        } else {
            add2array(ajaxs, targeturl);
        }
        ajax.targeturl = targeturl;
        ajax.xmlhttprequest.onreadystatechange = ajax.processhandle;
        ajax.resulthandle = resulthandle;
        if (window.xmlhttprequest) {
            ajax.xmlhttprequest.open('get', ajax.targeturl);
            ajax.xmlhttprequest.send(null);
        } else {
            ajax.xmlhttprequest.open("get", targeturl, true);
            ajax.xmlhttprequest.send();
        }
    }

    ajax.post = function (usemethod, targeturl, resulthandle) {
        if (in_array(targeturl, ajaxs)) {
            return false;
        } else {
            add2array(ajaxs, targeturl);
        }
        ajax.targeturl = targeturl;

        var xml_dom = ajax.createxmldom();
        xml_dom.async = false;

        if (!is_opera) /* opera不需要声明这一段 */
        {
            var xmlproperty = xml_dom.createprocessinginstruction("xml", "version=\"1.0\" encoding=\"utf-8\"");
            xml_dom.appendchild(xmlproperty);
        }

        var objroot = xml_dom.createelement("root");

        var objfield = xml_dom.createelement("type");
        var otext = xml_dom.createtextnode(usemethod);
        objfield.appendchild(otext);
        objroot.appendchild(objfield);

        switch (usemethod) {
            case 'updatelabel':
                objfield = xml_dom.createelement("labelname");
                otext = xml_dom.createtextnode(ajax.labelname);
                objfield.appendchild(otext);
                objroot.appendchild(objfield);

                objfield = xml_dom.createelement("currentpage");
                otext = xml_dom.createtextnode(ajax.currentpage);
                objfield.appendchild(otext);
                objroot.appendchild(objfield);

                var objattrib;

                for (var i = 0; i < ajax.para.length; i++) {
                    objfield = xml_dom.createelement("attrib");
                    if (i < ajax.paratype.length) {
                        switch (ajax.paratype[i]) {
                            case 'innerhtml':
                                objattrib = xml_dom.createelement(ajax.para[i]);
                                otext = xml_dom.createtextnode($(ajax.para[i]).innerhtml);
                                break;
                            case 'innertext':
                                objattrib = xml_dom.createelement(ajax.para[i]);
                                otext = xml_dom.createtextnode($(ajax.para[i]).innertext);
                                break;
                            case 'value':
                                objattrib = xml_dom.createelement(ajax.para[i]);
                                otext = xml_dom.createtextnode($(ajax.para[i]).value);
                                break;
                            case 'text':
                                objattrib = xml_dom.createelement(ajax.para[i]);
                                otext = xml_dom.createtextnode($(ajax.para[i]).text);
                                break;
                            case 'select':
                                var optioncount = $(ajax.para[i]).length;
                                for (var m = 0; m < optioncount; m++) {
                                    var option = $(ajax.para[i]).options[m];
                                    if (option.selected) {
                                        otext = xml_dom.createtextnode(option.value);
                                    }
                                }
                                break;
                            case 'innerhtml.nohtml':
                                objattrib = xml_dom.createelement(ajax.para[i]);
                                otext = xml_dom.createtextnode(removehtml($(ajax.para[i]).innerhtml));
                                break;
                            case 'innertext.nohtml':
                                objattrib = xml_dom.createelement(ajax.para[i]);
                                otext = xml_dom.createtextnode(removehtml($(ajax.para[i]).innertext));
                                break;
                            case 'value.nohtml':
                                objattrib = xml_dom.createelement(ajax.para[i]);
                                otext = xml_dom.createtextnode(removehtml($(ajax.para[i]).value));
                                break;
                            case 'text.nohtml':
                                objattrib = xml_dom.createelement(ajax.para[i]);
                                otext = xml_dom.createtextnode(removehtml($(ajax.para[i]).text));
                                break;
                            default:
                                objattrib = xml_dom.createelement(ajax.para[i].split('=')[0]);
                                otext = xml_dom.createtextnode(ajax.para[i].split('=')[1]);
                                break;
                        }
                    }
                    else {
                        objattrib = xml_dom.createelement(ajax.para[i].split('=')[0]);
                        otext = xml_dom.createtextnode(ajax.para[i].split('=')[1]);
                    }

                    objattrib.appendchild(otext);
                    objfield.appendchild(objattrib);
                    objroot.appendchild(objfield);
                }
                break;
            case 'updatepage':
                objfield = xml_dom.createelement("labelname");
                otext = xml_dom.createtextnode(ajax.labelname);
                objfield.appendchild(otext);
                objroot.appendchild(objfield);

                objfield = xml_dom.createelement("sourcename");
                otext = xml_dom.createtextnode(ajax.sourcename);
                objfield.appendchild(otext);
                objroot.appendchild(objfield);

                objfield = xml_dom.createelement("currentpage");
                otext = xml_dom.createtextnode(ajax.currentpage);
                objfield.appendchild(otext);
                objroot.appendchild(objfield);

                objfield = xml_dom.createelement("total");
                otext = xml_dom.createtextnode(ajax.total);
                objfield.appendchild(otext);
                objroot.appendchild(objfield);

                objfield = xml_dom.createelement("pagesize");
                otext = xml_dom.createtextnode(ajax.pagesize);
                objfield.appendchild(otext);
                objroot.appendchild(objfield);
                break;
            default:
                for (var i = 0; i < ajax.para.length; i++) {

                    if (ajax.para[i].indexof('=') >= 0) {
                        objfield = xml_dom.createelement(ajax.para[i].split('=')[0]);
                        otext = xml_dom.createtextnode(ajax.para[i].split('=')[1]);
                        objfield.appendchild(otext);
                        objroot.appendchild(objfield);
                    }
                    else {
                        objfield = xml_dom.createelement(ajax.para[i]);
                        if (i < ajax.paratype.length) {
                            if ($(ajax.para[i]) != null) {
                                switch (ajax.paratype[i]) {
                                    case 'innerhtml':
                                        otext = xml_dom.createtextnode($(ajax.para[i]).innerhtml);
                                        break;
                                    case 'innertext':
                                        otext = xml_dom.createtextnode($(ajax.para[i]).innertext);
                                        break;
                                    case 'text':
                                        otext = xml_dom.createtextnode($(ajax.para[i]).text);
                                        break;
                                    case 'select':
                                        var optioncount = $(ajax.para[i]).length;
                                        for (var m = 0; m < optioncount; m++) {
                                            var option = $(ajax.para[i]).options[m];
                                            if (option.selected) {
                                                otext = xml_dom.createtextnode(option.value);
                                            }
                                        }
                                        break;
                                    case 'innerhtml.nohtml':
                                        otext = xml_dom.createtextnode(removehtml($(ajax.para[i]).innerhtml));
                                        break;
                                    case 'innertext.nohtml':
                                        otext = xml_dom.createtextnode(removehtml($(ajax.para[i]).innertext));
                                        break;
                                    case 'nohtml':
                                        otext = xml_dom.createtextnode(removehtml($(ajax.para[i]).value));
                                        break;
                                    case 'text.nohtml':
                                        otext = xml_dom.createtextnode(removehtml($(ajax.para[i]).text));
                                        break;
                                    default:
                                        otext = xml_dom.createtextnode($(ajax.para[i]).value);
                                        break;
                                }
                                objfield.appendchild(otext);
                            }
                        }
                        else {
                            if ($(ajax.para[i]) != null) {
                                otext = xml_dom.createtextnode($(ajax.para[i]).value);
                                objfield.appendchild(otext);
                            }
                        }
                        objroot.appendchild(objfield);
                    }

                }
                break;
        }
        xml_dom.appendchild(objroot);

        ajax.xmlhttprequest.onreadystatechange = ajax.processhandle;
        ajax.resulthandle = resulthandle;
        ajax.xmlhttprequest.open('post', targeturl);
        ajax.xmlhttprequest.setrequestheader('content-type', 'application/x-www-form-urlencoded');
        ajax.xmlhttprequest.send(xml_dom);
    }
    return ajax;
}

/* 用户登录部分 */
function showuserlogin(showuserstat) {
    var x = new ajaxrequest('xml', showuserstat);
    if (getloginedusername() == "err") {
        x.labelname = "用户登录界面";
    }
    else {
        x.labelname = '用户登录成功';
    }
    x.pagename = "";
    x.currentpage = 1;
    x.post('updatelabel', '/ajax.aspx', function (s) {
        var xml = x.createxmldom(s);
        $(showuserstat).innerhtml = xml.getelementsbytagname("body")[0].firstchild.data;
    });
}

function senduserlogin(showrequeststat, showuserstat) {
    var x = new ajaxrequest('xml', showrequeststat);
    x.para = ['username', 'password', 'checkcode'];
    x.post('userlogin', '/ajax.aspx', function (s) {
        var xml = x.createxmldom(s);
        if (xml.getelementsbytagname("status")[0].firstchild.data == "ok") {
            $(showrequeststat).style.display = 'none';
            showuserlogin(showuserstat);
        }
        else {
            $(showrequeststat).innerhtml = xml.getelementsbytagname("body")[0].firstchild.data; ;
        }
    });
}

function quitlogin() {
    var x = new ajaxrequest('xml', '');
    x.post('userlogout', '/ajax.aspx', function (s) { });
}

function getloginedusername() {
    var outstr;
    var x = new ajaxrequest('xml', '');
    var xml_dom = x.createxmldom();
    xml_dom.async = false;

    if (!is_opera) /* opera不需要声明这一段 */
    {
        var xmlproperty = xml_dom.createprocessinginstruction("xml", "version=\"1.0\" encoding=\"utf-8\"");
        xml_dom.appendchild(xmlproperty);
    }
    var objroot = xml_dom.createelement("root");
    var objfield = xml_dom.createelement("type");
    var otext = xml_dom.createtextnode("logincheck");
    objfield.appendchild(otext);
    objroot.appendchild(objfield);
    xml_dom.appendchild(objroot);
    var userhttp = x.createxmlhttprequest();
    userhttp.open("post", "/ajax.aspx", false);
    userhttp.onreadystatechange = function () {
        if (userhttp.readystate == 4 && userhttp.status == 200) {
            var xml = x.createxmldom(userhttp.responsetext);
            outstr = xml.getelementsbytagname("username")[0].firstchild.data;
        }
    }
    userhttp.send(xml_dom);
    return outstr;
}

/* 用户注册部分 */
function regusernamecheck(showuserstat) {
    var x = new ajaxrequest('xml', showuserstat);
    x.para = ['username'];
    x.post('usercheck', '/ajax.aspx', function (s) {
        var xml = x.createxmldom(s);
        if (xml.getelementsbytagname("status")[0].firstchild.data == "ok") {
            $(showuserstat).innerhtml = "本用户可以注册";
        }
        else {
            $(showuserstat).innerhtml = "本用户已存在，请另换一个用户名";
        }
    });
}

/* 重写firefox下的xmldocument.xml与innertext方法 */
if (is_moz) {
    node.prototype.__definegetter__
(
	"xml",
	function () {
	    return (new xmlserializer).serializetostring(this);
	}
);

    htmlelement.prototype.__definegetter__
(
    "innertext",
    function () {
        return this.textcontent;
    }
);

    htmlelement.prototype.__definesetter__
(
    "innertext",
    function (stext) {
        this.textcontent = stext;
    }
);
};

/* 过滤html符号 */
function removehtml(instr) {
    var d = document.createelement("div");
    d.innerhtml = instr;
    d.id = "tempremovehtmlcontent";
    d.style.display = "none";
    return d.innertext;
}

/* 改变图片大小 */
function resizepic(thispic) {
    if (thispic.width > 550) { thispic.height = thispic.height * 550 / thispic.width; thispic.width = 550; }
}

/* 无级缩放图片大小 */
function bbimg(o) {
    return true;
}

/* 隐藏域 */
function hiddencoupon(me) {
    if (me.checked) {
        document.getelementbyid('divcoupon').style.display = '';
    }
    else {
        document.getelementbyid('divcoupon').style.display = 'none';
    }
}