Toggles my cryptos on https://coinmarketcap.com/all/views/all/#EUR

my_cryptos.js

javascript:
    var my_cryptos = {
        "id-bitcoin": 0,
        "id-ethereum": 9.5572051,
        "id-ripple": 0,
        "id-bitcoin-cash": 0,
        "id-eos": 0,
        "id-stellar": 0,
        "id-litecoin": 0,
        "id-monero": 0,
        "id-cardano": 0,
        "id-dash": 4.93979,
        /*"id-iota": 0,*/
        /*"id-tron": 0,*/
        "id-neo": 0,
        "id-ethereum-classic": 0,
        "id-nem": 0,
        /*"id-vechain": 0,*/
        "id-zcash": 0,
        "id-qtum": 0,
        "id-augur": 0,
        "id-gnosis-gno": 0
    };
    var euros = {};
    var sum = 0.0;

    var addContent = true;
    if ($(".removable").length) {
	addContent = false;
        $(".removable").remove();
    } else {
        $("thead tr").append('<th id="th-name" class="sortable sorting removable" tabindex="0" aria-controls="currencies-all" rowspan="1" colspan="1" aria-label="Euro: activate to sort column ascending" style="width: 124px;">Euro</th>');
        $("thead tr").append('<th id="th-name" class="sortable sorting removable" tabindex="0" aria-controls="currencies-all" rowspan="1" colspan="1" aria-label="Percentage: activate to sort column ascending" style="width: 124px;">Percentage</th>');
    }
    
    $('#currencies-all').find('tbody tr').each(function( index ) {
        var crypto_id = ($( this ).attr('id') );
        if(crypto_id in  my_cryptos) {
            if (addContent) {
                var price = parseFloat($( this ).find("a[class='price']").text().substring(1).replace(",", ""));
                var euro = price * my_cryptos[crypto_id];
                euros[crypto_id] = euro;
                sum = sum + euro;
                $( this ).append("<td class='removable'>" + euro.toFixed(2) + "€</td>");
            }
        } else {
            $( this ).toggle();
        }
    });

    $('#currencies-all').find('tbody tr').each(function( index ) {
        var crypto_id = ($( this ).attr('id') );
        if(crypto_id in  my_cryptos) {
            if (addContent) {
                $( this ).append("<td class='removable'>" + (euros[crypto_id] / sum * 100).toFixed(2) + "%</td>");
            }
        }
    });

    if (addContent) {
        $('h1').append(" <span class='removable'>" + sum.toFixed(2) + "€</span>");
    }