jQuery validate phone number
<p>I'd like to validate phone number as:
(000) 111-1111
I'm using this snippet, which works fine if the user enters only numbers. but if he started with a brackets, all crashes .. I really would need help ...</p>

<pre><code>$("input#phone1,input#phone2").keyup(function() {
        var curchr = this.value.length;
        var curval = $(this).val();
        //var numericReg = /^\d*[0-9](|.\d*[0-9]|,\d*[0-9])?$/;
        var numericReg = /^\(?(\d{3})\)?[- ]?(\d{3})[- ]?(\d{4})$/;
        if(!numericReg.test(curval)) {
            $(this).prev('label').append(tag_error + numeric_chars_only + end_tag);
            console.log($(this)+numeric_chars_only);
        }
        if (curchr == 3) {
            $("input#phone1").val("(" + curval + ")" + " ");
        } else if (curchr == 9) {
            $("input#phone1").val(curval + "-");
        }
    });
</code></pre>
