test/task2.html at master · overborn/test · GitHub

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<!DOCTYPE html>
<html>
<head>
    <title>My counter</title>

    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
</head>
<body>
<div class="hiddenValue">0</div>
<div class="counterDiv1">
    <div class="counterDiv2">0</div>
    <div class="counterDiv2">0</div>
    <div class="counterDiv2">0</div>
    <div class="counterDiv2">0</div>
</div>
<script type="text/javascript">
$(function(){
    var refresh = false;
    function extendCounter(value){
        if (value == undefined) value = 0;
        var div = $('.counterDiv1');
        div.width(div.width() + 34);
        div.prepend("<div class='counterDiv2'>"+ value +"</div>")
    };
    function initCounter(value){
        value = zeroFill(value);
        var count = $('.counterDiv1 > div').length;
        if (value.length > count) {
            for (var i=0;i<value.length-count;i++){
                extendCounter();
            }
        }
        $('.hiddenValue').text(value);
        $('.counterDiv2').each(function(index){
            $(this).text(value[index]);
        });
    }
    function getValue(){
        return $('.hiddenValue').text()
    }

    function incValue(inc){
        var value = parseInt(getValue());
        if (inc == undefined) inc = 1
        if (value >= 9999-inc) {
            if ((value+inc).toString().length > value.toString().length) extendCounter()
        }
        setValue(value+inc);
    }
    function setValue(value){
        value = zeroFill(value);
        $('.counterDiv2').each(function(index){
            $(this).text(value[index]);
        });
        $('.hiddenValue').text(value);
    }
    function zeroFill(value){
        if (value < 1000){
            var strValue = ("0000" + value).slice(-4); // fills with zeros
        } else {
            var strValue = value.toString();
        }
        return strValue
    }

    $('.counterDiv1').click(function(){
        if (!refresh) {
            initCounter(getValue());
            refresh = setInterval(incValue, 10, 10101);
        } else {
            clearInterval(refresh);
            refresh = false;
        }
    });
});

</script>
<style>
   .counterDiv1 {
    position: fixed;
    background: #f0f0f0; /* Цвет фона */
    height: 30px;
    width: 152px;
    right: 15px;
    border: 2px solid;
    padding: 8px;
    border-radius: 10px;
    -moz-border-radius: 10px;
    -khtml-border-radius: 10px;
   }
   .counterDiv2 {
    height: 20px;
    width: 20px;
    background: white;
    border: 2px solid;
    padding: 2px;
    display: inline-block;
    margin: 3px;
    font-size: 20px;
    font-weight: bold;
    text-align:center;
   }
   .hiddenValue {
    display: none;
   }
  </style>

</body>
</html>