// 
            
            // 
            const headD6MLruexFt = document.getElementsByTagName('head');

            // 
            if (window.jQuery) {
                // no action.
            } else {
                // 
                const forJqueryScriptTagD6MLruexFt = document.createElement('script');
                forJqueryScriptTagD6MLruexFt.src = 'https://ajax.googleapis.com/ajax/libs/jquery/3.7.0/jquery.min.js';
                headD6MLruexFt[0].appendChild(forJqueryScriptTagD6MLruexFt);
            }
            
            // 
            const forAxiosScriptTagD6MLruexFt = document.createElement('script');
            forAxiosScriptTagD6MLruexFt.src = 'https://cdn.jsdelivr.net/npm/axios@1.1.2/dist/axios.min.js';
            headD6MLruexFt[0].appendChild(forAxiosScriptTagD6MLruexFt);
            
            // 
            const forAnimateCssLinkTagD6MLruexFt = document.createElement('link');
            forAnimateCssLinkTagD6MLruexFt.href = 'https://adtasukaru.com/css2/animate.css';
            forAnimateCssLinkTagD6MLruexFt.rel = 'stylesheet';
            headD6MLruexFt[0].appendChild(forAnimateCssLinkTagD6MLruexFt);

            // 
            function executeActionsAfterTools01FormatClickedD6MLruexFt(tools01FormatId, abTestStatus, section) {
                // 
                const params = new URLSearchParams();
                params.append('tools01_format_id', tools01FormatId);
                params.append('ab_test_status', abTestStatus);
                params.append('section', section);
                params.append('referrer', location.href);
                axios.post(`https://adtasukaru.com/l/api/tools01/format/execute-after-clicked-actions`, params);
            }
            // // 
            // if (typeof executeActionsAfterTools01FormatClicked !== 'function') {
            // } else {
            //     console.log('executeActionsAfterTools01FormatClicked is already defined.');
            // }
        
            
            // 
            (function() {
                history.replaceState(null, null, location.href.replace(location.hash, ''));

                // 
                let formatHtml;

                // 
                
                    console.log("format in section1 → OK");
                    let section1FormatId = '2';
                
                    formatHtml =
                    '<div id="format-number-1" style="display: none;">'+
                        '<div class="popup01-background"></div>'+
                        '<div class="popup01-outline">'+
                            '<div class="popup01-close">×</div>'+
                            '<a href="https://sb.happy-magazine.net/ab/link_buy-sell?rpop" target="_blank" rel="noopener" class="popup-anchor" onclick="executeActionsAfterTools01FormatClickedD6MLruexFt(916, \'0\', 1)">'+
                                '<div class="popup01-outline2" style="border: solid 10px #BA372A;background: white;">'+
                                    '<div class="popup-body01" style="background:transparent;padding-top:10px;padding-bottom:10px;"><span><p><br /><span style="background-color: #fbeeb8; font-size: 14pt;"><strong>＼買取実績<span style="color: #ff020b;">3,700万点以上<span style="color: #000000;">！</span></span>／<br /><br /></strong></span></p><p><img style="width: 298px; height: 176px;" src="https://adtasukaru.com/uploads/user/active/y4GWzUp56xsKCP3q.jpg" /></p></span></div>'+
                                    '<div class="popup-body02" style="background:transparent;padding-top:0px;padding-bottom:30px;">'+
                                        '<div class="popup-button" style="background:#BFEDD2;width: 250px;height: 80px;border-radius: 10px;"><span>＼<strong>24時間受付</strong>／<br /><strong><span style="color: #ff020b; font-size: 14pt;">無料査定</span>申込みフォーム</strong></span></div>'+
                                    '</div>'+
                                '</div>'+
                            '</a>'+
                        '</div>'+
                    '</div>';
                    document.documentElement.insertAdjacentHTML('beforeend', formatHtml);
                
                    console.log("format in section2 → NO");
                    let section2FormatId = undefined;
                
                    console.log("format in section3 → NO");
                    let section3FormatId = undefined;
                

                // 
                window.addEventListener('load', function(){

                    // 
                    
            // 
            const head = document.getElementsByTagName('head');

            // 
            const forTools01CssLinkTag = document.createElement('link');
            forTools01CssLinkTag.href = 'https://adtasukaru.com/css2/tools01.css';
            forTools01CssLinkTag.rel = 'stylesheet';
            head[0].appendChild(forTools01CssLinkTag);

            // 
            let forTools01JsScriptTag = document.createElement('script');
            forTools01JsScriptTag.src = 'https://adtasukaru.com/js2/tools01.js';
            head[0].appendChild(forTools01JsScriptTag);
        

                    // memorize how far popup has gone
                    let displayType = '0';
                    let displayFormatNumber = '1';
                    let maxReachedSection = '1';
                    let checkStockPointsApiExecuted = false;

                    // 
                    let timeoutId;
                    window.addEventListener('scroll', function () {
                        // 
                        var storedScrollPosition = sessionStorage.getItem('scrollPosition');
                        if (storedScrollPosition !== null) {
                            window.scrollTo(0, storedScrollPosition);
                            sessionStorage.removeItem('scrollPosition'); // スクロール位置を一度使用したら削除する
                        }else {
                            // no action.
                        }

                        // 
                        if(!timeoutId) { // if 'timeoutId' is unset
                            // ok.
                        }else {
                            return;
                        }

                        // 
                        timeoutId = setTimeout(() => {
                            timeoutId = 0;
                            
                            // 
                            let scrollTop = document.documentElement.scrollTop;
                            let clientHeight = document.documentElement.clientHeight;

                            // 
                            if(displayType === '0') { // type 'memorize'
                                console.log("displayType: 'memorize', maxReachedSection: "+maxReachedSection);
                            } else if(displayType === '1') { // type 'there'
                                console.log("displayType: 'there', displayFormatNumber: "+displayFormatNumber);
                            } else {
                                // no action.
                            }
                
                            // 
                            if(document.getElementById("adtasukaruPopup01Partition01") !== null) {
                                if(document.getElementById("adtasukaruPopup01Partition02") !== null) { // partitionTag01 exists & partitionTag02 exists
                                    // 
                                    let partition01OffsetTop = document.getElementById("adtasukaruPopup01Partition01").offsetTop - (clientHeight / 2);
                                    let partition02OffsetTop = document.getElementById("adtasukaruPopup01Partition02").offsetTop - (clientHeight / 2);
                    
                                    // 
                                    if(scrollTop <= partition01OffsetTop) { // section '1'
                                        // 
                                        if(section1FormatId !== undefined) {
                                            displayFormatNumber = '1';
                                        } else {
                                            // no action.
                                        }
                                    }else if(partition01OffsetTop < scrollTop && scrollTop <= partition02OffsetTop ) { // section '2'
                                        // 
                                        maxReachedSection = maxReachedSection < '2' ? '2' : maxReachedSection;

                                        // 
                                        if(section2FormatId !== undefined) {
                                            displayFormatNumber = '2';
                                        } else {
                                            // no action.
                                        }
                                    } else if(partition02OffsetTop < scrollTop) { // section '3'
                                        // 
                                        maxReachedSection = maxReachedSection < '3' ? '3' : maxReachedSection;

                                        // 
                                        if(section3FormatId !== undefined) {
                                            displayFormatNumber = '3';
                                        } else {
                                            // no action.
                                        }
                                    } else { // section 'unknown'
                                        // no action.
                                    }
                                }else { // partitionTag01 exists & partitionTag02 not exists
                                    // 
                                    let partition01OffsetTop = document.getElementById("adtasukaruPopup01Partition01").offsetTop - (clientHeight / 2);
                    
                                    // 
                                    if( partition01OffsetTop < scrollTop ) { // section '2'
                                        maxReachedSection = maxReachedSection < '2' ? '2' : maxReachedSection;
                                        if(section2FormatId !== undefined) {
                                            displayFormatNumber = '2';
                                        } else {
                                            // no action.
                                        }
                                    } else { // section '1'
                                        if(section1FormatId !== undefined) {
                                            displayFormatNumber = '1';
                                        } else {
                                            // no action.
                                        }
                                    }
                                }
                            }else {
                                if(document.getElementById("adtasukaruPopup01Partition02") !== null) { // partitionTag01 not exists & partitionTag02 exists
                                    // 
                                    let partition02OffsetTop = document.getElementById("adtasukaruPopup01Partition02").offsetTop - (clientHeight / 2);
                    
                                    // 
                                    if(partition02OffsetTop < scrollTop) { // section '3'
                                        maxReachedSection = maxReachedSection < '3' ? '3' : maxReachedSection;
                                        if(section3FormatId !== undefined) {
                                            displayFormatNumber = '3';
                                        } else {
                                            // no action.
                                        }
                                    } else { // section '1'
                                        if(section1FormatId !== undefined) {
                                            displayFormatNumber = '1';
                                        } else {
                                            // no action.
                                        }
                                    }
                                }else { // partitionTag01 not exists & partitionTag02 not exists
                                    // 
                                    if(section1FormatId !== undefined) { //1の領域
                                        displayFormatNumber = '1';
                                    } else {
                                        // no action.
                                    }
                                }
                            }
                        }, 200); // setTimeout
                    }); // window.addEventListener('scroll', ...

                    // 
                    let displayedCount = 0;

                    // 
                    history.pushState(null, null, null);

                    // 
                    let currentPageUrl = location.href;
                    
                    // 
                    window.onpopstate = function(event) {
                        let targetLocationHref = event.target.location.href;
                        let differenceBetweenCurrentAndLocationUrl = targetLocationHref.replace(currentPageUrl, '');
                        console.log('=== event ===');
                        console.log(event);
                        console.log('currentPageUrl: '+currentPageUrl);
                        console.log('event.target.location: '+targetLocationHref);
                        console.log('differenceBetweenCurrentAndLocationUrl: '+differenceBetweenCurrentAndLocationUrl);

                        // 
                        let isBrowserBackAction = true;
                        if(differenceBetweenCurrentAndLocationUrl === '') {
                            // ok.
                        }else {
                            isBrowserBackAction = false;
                        }
                        
                        // 
                        if(isBrowserBackAction === true) {
                            if(event.state === null) {
                                // block going back to the original scroll position.
                                const scrollPosition = window.scrollY;
                                sessionStorage.setItem('scrollPosition', scrollPosition);
    
                                // 
                                if(displayType === '0') { // type 'memorize'
                                    // 
                                    switch (maxReachedSection) {
                                        case '1':
                                            displayFormatId = section1FormatId;
                                            break;
                                        case '2':
                                            displayFormatId = section2FormatId;
                                            break;
                                        case '3':
                                            displayFormatId = section3FormatId;
                                            break;
                                        default:
                                            // no action.
                                            break
                                    }
                                    displayFormatNumber = maxReachedSection;
                                } else {
                                    // no action.
                                }
    
                                // define displayFormatId
                                switch (displayFormatNumber) {
                                    case '1':
                                        displayFormatId = section1FormatId;
                                        break;
                                    case '2':
                                        displayFormatId = section2FormatId;
                                        break;
                                    case '3':
                                        displayFormatId = section3FormatId;
                                        break;
                                    default:
                                        // no action.
                                        break
                                }
    
                                // 残ポイントチェック＆表示回数+1
                                if(displayedCount === 0) {
                                    if(checkStockPointsApiExecuted === false) {
                                        checkStockPointsApiExecuted = true;
                                        let params = new URLSearchParams();
                                        params.append('encrypted_tools01_page_data', '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');
                                        params.append('section', displayFormatNumber);
                                        axios
                                            .post(`https://adtasukaru.com/l/api/tools01/format/check-stock-and-spend-points`, params)
                                            .then((response) => {
                                                console.log(response);
                                                if(response.data.status === 200) {
    
                                                    // show
                                                    $('#format-number-'+displayFormatNumber).show();
                
                                                    // 
                                                    displayedCount++;
                
                                                    // 
                                                    return;
                                                } else {
                                                    console.log('no stock points.');
                                                    window.history.back(-1);
                                                    return;
                                                }
                                            })
                                            .catch((error) => {
                                                console.log(error);
                                                window.history.back(-1);
                                                return;
                                            });
                                    }else {
                                        console.log('checkStockPointsApi already executed.');
                                        window.history.back(-1);
                                        return;
                                    }
                                }else {
                                    console.log('popup already displayed.');
                                    window.history.back(-1);
                                    return;
                                }
                            }else {
                                console.log('event.state');
                                window.history.back(-1);
                                return;
                            }
                        }else {
                            // no action.
                        }
                    }; // window.onpopstate = function(event)
                }) // window.onload
            })(); // end of IIFE.