How automatically shift decimal point to one decimal place in textbox using javascript

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Javascript

CSS

HTML5

hi all,

i want to shift cursor after decimal point automatically if i enter one value.

for ex, 0.00 is the defalut value in textbox and if i enter one value into textbox cursor automaticallly shifed to after . point in textbox,this is my actual requirement.

What I have tried:

<script type="text/javascript">
        function AddComma(text) {
            switch (text.value.length) {
                case 1:
                    document.getElementById("txtNumber").value = "0.0" + text.value;
                    break;
                default:
                    var data = text.value.replace(".", "");
                    var first = data.substring(0, (data.length - 2));
                    var second = data.substring(data.length - 2);
                    var temp = Math.abs(first) + "." + second;
                    document.getElementById("txtNumber").value = temp;
            }
        }
    </script>

<input id="txtNumber" type="text" name="name" onkeyup="AddComma(this);" />