$(function(){
            $(".chan").click(function(){
            for( i=1; i<22
            ; i++ ){
            if( i == 22 ){
            j = 1;
            }else{
            j = i + 1;
            }
           if( $( "#cm" + i ).css( "display" ) != "none" ){
            $( "#cm" + i ).hide();
            $( "#cm" + j ).show();
            break;
            }
            }
            });
            });
          
    
    
            $('[data-text-split]').each((index, element) => {
        const brSplitted = $(element).html().split('<br>');
        let mapped = [];
        brSplitted.forEach((item, index) => {
            const itemSplitted = item.split('');
            const brFormatted = itemSplitted.map((item) => {
                return `<span data-text-wrap><span data-text-inner>${item}</span></span>`;
            });
            mapped[index] = brFormatted.join('');
        })
        const result = mapped.join('<br>');
        $(element).html(result);
    
        const length = $(element).find('[data-text-wrap]').length;
        for (let i = 0; i < length; i++) {
            $(element).find('[data-text-inner]').eq(i).css('animation', `text 30ms ${30 * i}ms forwards`);
        }
    });
    
    
    function linkCheck(btn){
      if ( btn == 1 ){
        link = "猿轡";
        href = "novel - gag.html";
      }else if ( btn == 2 ){
        link = "足習字";
        href = "novel - 1p feet.html";
      }
     
      ret = confirm(link + "を選択します。");
      if (ret == true){
        location.href = href;
      }
    }