/* version Mon Dec 22 15:02:14 JST 2008 */
var loadedSearchFrame;

function LiveDoorSearchReSearch() {
    this.initialize.apply(this, arguments);
}

LiveDoorSearchReSearch.prototype = {
    initialize: function(args) {
        this.initializeFilter(args);
        this.search_id  = args.search_id;
        this.iframe_id  = args.iframe_id;
        this.font_color = args.font_color;
        this.referrer   = args.referrer;
        this.theme      = args.theme;
        this.image_base_url = args.image_base_url || 'http://st.search.livedoor.com/research/img/';
        this.has_query  = false;
        this.search_url = "http://search.livedoor.com/search/"; 
        this.blog_search_url = "http://blogsearch.livedoor.com/search/article"; 
        this.search_link_url = ""; 
        this.iframe_style = args.iframe_style || {};
        this.search_option = args.search_option || {};
        this.adsense_ids = ( typeof args.adsense_ids == 'string' ? [args.adsense_ids] : args.adsense_ids || [] );
    },

    initializeFilter : function( args ) {
    },

    highlightAdsense : function (adsense_ids) {
        if ( !this.has_query || !this.escaped_query ) return false;

        var adsense_ids  = adsense_ids ? ( typeof adsense_ids == 'string' ? [adsense_ids] : adsense_ids ) : this.adsense_ids,
            ignore_tags  = /^(script|object|embed)$/i,
            search_query = this.escaped_query.replace(/　/g, " ").replace(/([\[\}.*+?\\^${}()])/g, "\\$1").split(/\s+/),
            highlight    = function (target) {
                               var txt     = target.innerHTML,
                                   colors  = ['#FFFF66', '#A0FFFF', '#99FF99', '#FF9999', '#00AA00', '#886800' , '#004699'];
                               for ( var i = 0, l = search_query.length; i < l; i++ ) {
                                   if ( !/^(span||style|background|\w|\/|<|>)$/.test( search_query[i] ) )
                                       txt = txt.replace(new RegExp('(' + search_query[i] + ')', 'g'), '<span style="background:' + ( colors[i] || 'yellow' ) + ';">$1</span>');
                               }
                               target.innerHTML = txt;
                           },
             is_ie       = ( navigator.userAgent.indexOf("MSIE") != -1 );

        for ( var i = 0, l = adsense_ids.length; i < l; i++ ) {
            var adsense = document.getElementById( adsense_ids[i] );
            if ( !adsense ) continue;
            var elements = [], tags = adsense.getElementsByTagName('*');
            if ( is_ie ) {
                for ( var x = 0, y = tags.length; x < y; elements.push( tags[x] ), x++ );
            } else {
                elements = Array.prototype.slice.call( tags );
            }
            for ( var j = 0, m = elements.length; j < m; j++ ) {
                if ( elements[j].firstChild && ( elements[j].firstChild.nodeType == 3 ) && !ignore_tags.test( elements[j].tagName ) && !elements[j].getElementsByTagName('*').length ) {
                    highlight( elements[j] );
                }
            }
        }
    },

    loadSearchedQuery : function( ) {
        var ref = this._getReferer();
        if(!ref) return;
        this.referrer = ref;
        var SearchEngineList = [
            {
                name: 'google',
                regexp: '^http://www\.google\.(co\.jp|com)',
                query: 'q',
                input_enc_key: 'ie',
                input_enc: '',
                type : 'site'
            },
            {
                name: 'yahoo',
                regexp: '^http://search\.yahoo\.(co\.jp|com)',
                query: 'p',
                input_enc_key: 'ei',
                input_enc: '',
                type : 'site'

            },
            {
                name: 'debug',
                regexp: '^http://localhost',
                query: 'q',
                input_enc_key: 'ienc',
                input_enc: '',
                type : 'site'

            },
            {
                name: 'msn',
                regexp: '^http://search\.(msn\.co\.jp|live\.com)/results\.aspx',
                query: 'q',
                input_enc_key: '',
                input_enc: 'utf-8',
                type : 'site'

            },
            {
                name: 'baidu',
                regexp: '^http://www\.baidu\.jp/s',
                query: 'wd',
                input_enc_key: 'ie',
                input_enc: '',
                type : 'site'
            },
            {
                name: 'goo',
                regexp: '^http://search\.goo\.ne\.jp/web\.jsp',
                query: 'MT',
                input_enc_key: 'IE',
                input_enc: 'utf-8',
                type : 'site'
            },
            {
                name: 'nifty',
                regexp: '^http://search\.nifty\.com/websearch/search',
                query: 'q',
                input_enc_key: '',
                input_enc: 'utf-8',
                type : 'site'
            },
            {
                name: 'infoseek',
                regexp: '^http://search\.www\.infoseek\.co\.jp/Web',
                query: 'qt',
                input_enc_key: '',
                input_enc: 'utf-8',
                type : 'site'
            },
            {
                name: 'fc2',
                regexp: '^http://blogsearch\.fc2\.com/',
                query: 't',
                input_enc_key: '',
                input_enc: 'utf-8',
                type : 'blog'
            },
            {
                name: 'baidu',
                regexp: '^http://blog\.baidu\.jp/s',
                query: 'wd',
                input_enc_key: '',
                input_enc: 'utf-8',
                type : 'blog'
            },
            {
                name: 'ask',
                regexp: '^http://ask\.jp/blog\.asp',
                query: 'q',
                input_enc_key: '',
                input_enc: 'utf-8',
                type : 'blog'
            },
            {
                name: 'nifty',
                regexp: '^http://search\.nifty\.com/blogsearch/search',
                query: 'q',
                input_enc_key: '',
                input_enc: 'utf-8',
                type : 'blog'
            },
            {
                name: 'google',
                regexp: '^http://blogsearch\.google\.co\.jp/blogsearch',
                query: 'q',
                input_enc_key: 'ie',
                input_enc: 'utf-8',
                type : 'blog'
            },
            {
                name: 'yahoo',
                regexp: '^http://blog-search\.yahoo.co\.jp/search',
                query: 'p',
                input_enc_key: 'ei',
                input_enc: 'utf-8',
                type : 'blog'
            }
        ];
        for(var i = 0; i < SearchEngineList.length; i++) {
            if( ref.match(SearchEngineList[i].regexp) ) {
                var params = this._parseQuery(ref);
                var query  = params[SearchEngineList[i].query];
                var input_enc = params[SearchEngineList[i].input_enc_key]
                          || SearchEngineList[i].input_enc
                          || 'utf-8';
                var engine_name = SearchEngineList[i].name;
                if (input_enc != 'utf-8' && input_enc != 'UTF-8') return; //utf-8 only
                this.query = query;
                this.has_query = true;
                this.escaped_query = this._escape(query); 
                this.input_enc = input_enc;
                this.engine_name = engine_name;
                if ( this.search_option["site"] ) {
                    query = 'site:' + this.search_option["site"] + ' ' + query;
                    delete this.search_option["site"];
                }
                if ( SearchEngineList[i].type == 'site') {
                    this.search_link_url = this.search_url + '?c=' + this.search_id + '&ie=' + input_enc + '&q=' + encodeURIComponent(query);
                    for ( var k in this.search_option ) {
                        this.search_link_url = this.search_link_url + '&' + k + '=' + encodeURIComponent(this.search_option[k]);
                    }
                } else {
                    this.search_link_url = this.blog_search_url + '?c=' + this.search_id + '&q=' + encodeURIComponent(query);
                }
            } 
        }
    },

    createSearchForm : function() {
        if ( !this.has_query ) return;
        if (!this.query || !this.input_enc || !this.engine_name ) return;
        var theme = this.theme ? this.theme + '/' :  '';
        var image_base_url = this.image_base_url  + theme ;
        var font_color = this.font_color || '#fff';
        var iframe_id = this.iframe_id || 'ld_research_frame';
        var iframe = document.createElement("iframe");
        iframe.frameBorder           = 0;
        iframe.id                    = iframe_id;
        iframe.allowTransparency     = 'true';
        iframe.style.zIndex          = ( this.iframe_style.zIndex || 2 );
        iframe.style.height          = ( this.iframe_style.height || '87px' );
        iframe.style.width           = ( this.iframe_style.width || '232px' );
        iframe.style.margin          = ( this.iframe_style.margin || 0 );
        iframe.style.scrolling       = ( this.iframe_style.scrolling || 'no' );
        document.getElementsByTagName("body")[0].appendChild(iframe);
        var iframedoc = document.all ? iframe.contentWindow.document : iframe.contentDocument;
        iframedoc.open();
        iframedoc.writeln('<?xml version="1.0" encoding="' + this.input_enc + '"?>'
                   + '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" '
                   + '"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">'
                   + '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="ja" lang="ja">'
                   + '<head>'
                   + '<meta http-equiv="Content-Type" content="text/html; charset='
                   + this.input_enc
                   + '" />'
                   + '<meta http-equiv="Content-Style-Type" content="text/css" />'
                   + '<meta http-equiv="Content-Script-Type" content="text/javascript" />'
                   + '<style type="text/css">'
                   + '* { margin: 0; padding: 0; }'
                   + 'html { position:absolute; top:0; left:0;}'
                   + 'body { font-weight: bold; background-color: transparent; position:absolute; top:0; left:0;}'
                   + 'a { text-decoration: none; position: relative; z-index: 4; }'
                   + 'a img { border: 0; }'
                   + 'div.searchFrame { width: 232px; height: 87px; word-break: break-all; word-wrap: break-word; overflow: hidden; background-image: url(' + image_base_url + 'frame.png); background-repeat: no-repeat; }'
                   + 'div.searchframe { background: none; position: absolute; }'
                   + 'div.searchframetrick { width: 232px; height: 87px; filter:Progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=crop,src=' + image_base_url + 'frame.png); background: none; position: absolute; top: 0px; left: 0px; }'
                   + 'a.help_btn { display: none; }'
                   + 'a.close_btn { position: absolute; right: 11px; top: 5px; z-index: 3; }'
                   + 'p.more { font-size: 14px; position: absolute; top: 14px; left: 15px; z-index: 1; }'
                   + 'p.more a { color: ' + font_color + ' }'

                   + 'a.re-search { display: block; position: relative; z-index: 2; width: 232px; height: 87px; text-align: center; text-decoration: none; color: #424242; }'
                   + 'a.re-search:hover { text-decoration: underline; color: #009; }'
                   + 'a.re-search span { display: block; padding: 5px 5px 5px 20px; margin: 29px 15px 0 5px; text-align: left; }'
                   + 'a.re-search span { background: #fff url(' + image_base_url + 'search.gif) no-repeat 0 5px; border-color: #46b1da; border: 1px solid #46b1da; -moz-border-radius: 4px;  -webkit-border-radius: 4px; }'
                   + '</style>'
                   + '</head>'
                   + '<body>'

                   + '<div class="searchFrameTrick"></div>'
                   + '<div class="searchFrame">'
                   + '<a href="http://helpguide.livedoor.com/help/search/qa/grp611#3866" class="help_btn" target="_parent"><img src="' + image_base_url + 'help.gif" width="17" height="16" /></a>'
                   + '<a href="javascript:void(0);" onclick="var d = parent.window.document; var search_frame = d.getElementById(\'' + iframe_id + '\'); search_frame.parentNode.removeChild(search_frame);"  class="close_btn"><img src="' + image_base_url + 'close.gif" width="17" height="16" /></a>'
//                   + '<p class="more">'
//                   + '<a href="' + this.search_link_url + '" target="_parent">'
//                   + decodeURIComponent('%E3%81%95%E3%82%89%E3%81%AB%E6%A4%9C%E7%B4%A2%CE%B2')
//                   + '</a>'
//                   + '</p>'
                   + '<a href="' + this.search_link_url + '" target="_parent" class="re-search">'
                   + '<span>'
                   + this.query
                   + '</span>'
                   + '</a>'
                   + '</div>'
                   + '</body></html>' );
        iframedoc.close();
    },

    drawSearchFrame : function() {
        if ( !loadedSearchFrame ) {
            loadedSearchFrame = 1;
            var obj = this;
            this._addLoadEvent( function() {
                obj.createSearchForm();
                obj.highlightAdsense();
            });
        }
     },

     _escape : function(str){
         return str.replace(/&/g, "&amp;").replace(/"/g, "&quot;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
     },

    _parseQuery : function(str) {
        var params = new Object();
        if(typeof(str) == 'undefined') return params;
        if(str.indexOf('?', 0) > -1) str = str.split('?')[1];
        var pairs = str.split('&');
        for(var i = 0; i < pairs.length; i++){
            var pair = pairs[i].split("=");
            if(pair[0] != ''){
                var val = pair[1].replace(/\+/g, ' ');
                params[pair[0]] = decodeURIComponent(val);
            }
        }
        return params;
    },

    _getReferer : function() {
        if ( this.referrer ) {
            return this.referrer;
        }
        var d = document;
        var w = window;
        var ref = '';
        if(w.self == w.parent) {
            ref = d.referrer;
            if(!ref) return;
            if(d.parent && d.parent != undefined)
                ref = d.parent.referrer;
            if(ref.match(/^(undefined|unknown|bookmark)$/i))
                ref = '';
        }
        return ref;
    },

    _addLoadEvent: function(func) {
        if(typeof window.addEventListener == 'function'){
            window.addEventListener('load', func, false);
            return true;
        } else if(typeof window.attachEvent == 'object'){
            window.attachEvent('onload', func);
            return true;
        }
        var oldonload = window.onload;
        if (typeof window.onload != 'function') {
            window.onload = func;
        } else {
            window.onload = function() {
                oldonload();
                func();
            };
        }
    }

}

function livedoorSearchShowReSearchFrame( args ) {
    if ( !args && !args.search_id ){
        return;
    }
    var research = new LiveDoorSearchReSearch(args);
    research.loadSearchedQuery();
    research.has_query && research.drawSearchFrame();
}