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<?php

/*
    Masked Input plugin for jQuery
    Copyright (c) 2007-2013 Josh Bush (digitalbush.com)
    Licensed under the MIT license (http://digitalbush.com/projects/masked-input-plugin/#license)
    Version: 1.3.1
*/
(function($) {
    function getPasteEvent() {
    var el = document.createElement('input'),
        name = 'onpaste';
    el.setAttribute(name, '');
    return (typeof el[name] === 'function')?'paste':'input';             
}

var pasteEventName = getPasteEvent() + ".mask",
    ua = navigator.userAgent,
    iPhone = /iphone/i.test(ua),
    android=/android/i.test(ua),
    caretTimeoutId;

$.mask = {
    //Predefined character definitions
    definitions: {
        '9': "[0-9]",
        'a': "[A-Za-z]",
        '*': "[A-Za-z0-9]"
    },
    dataName: "rawMaskFn",
    placeholder: '_',
};

$.fn.extend({
    //Helper Function for Caret positioning
    caret: function(begin, end) {
        var range;

        if (this.length === 0 || this.is(":hidden")) {
            return;
        }

        if (typeof begin == 'number') {
            end = (typeof end === 'number') ? end : begin;
            return this.each(function() {
                if (this.setSelectionRange) {
                    this.setSelectionRange(begin, end);
                } else if (this.createTextRange) {
                    range = this.createTextRange();
                    range.collapse(true);
                    range.moveEnd('character', end);
                    range.moveStart('character', begin);
                    range.select();
                }
            });
        } else {
            if (this[0].setSelectionRange) {
                begin = this[0].selectionStart;
                end = this[0].selectionEnd;
            } else if (document.selection && document.selection.createRange) {
                range = document.selection.createRange();
                begin = 0 - range.duplicate().moveStart('character', -100000);
                end = begin + range.text.length;
            }
            return { begin: begin, end: end };
        }
    },
    unmask: function() {
        return this.trigger("unmask");
    },
    mask: function(mask, settings) {
        var input,
            defs,
            tests,
            partialPosition,
            firstNonMaskPos,
            len;

        if (!mask && this.length > 0) {
            input = $(this[0]);
            return input.data($.mask.dataName)();
        }
        settings = $.extend({
            placeholder: $.mask.placeholder, // Load default placeholder
            completed: null
        }, settings);


        defs = $.mask.definitions;
        tests = [];
        partialPosition = len = mask.length;
        firstNonMaskPos = null;

        $.each(mask.split(""), function(i, c) {
            if (c == '?') {
                len--;
                partialPosition = i;
            } else if (defs[c]) {
                tests.push(new RegExp(defs[c]));
                if (firstNonMaskPos === null) {
                    firstNonMaskPos = tests.length - 1;
                }
            } else {
                tests.push(null);
            }
        });

        return this.trigger("unmask").each(function() {
            var input = $(this),
                buffer = $.map(
                mask.split(""),
                function(c, i) {
                    if (c != '?') {
                        return defs[c] ? settings.placeholder : c;
                    }
                }),
                focusText = input.val();

            function seekNext(pos) {
                while (++pos < len && !tests[pos]);
                return pos;
            }

            function seekPrev(pos) {
                while (--pos >= 0 && !tests[pos]);
                return pos;
            }

            function shiftL(begin,end) {
                var i,
                    j;

                if (begin<0) {
                    return;
                }

                for (i = begin, j = seekNext(end); i < len; i++) {
                    if (tests[i]) {
                        if (j < len && tests[i].test(buffer[j])) {
                            buffer[i] = buffer[j];
                            buffer[j] = settings.placeholder;
                        } else {
                            break;
                        }

                        j = seekNext(j);
                    }
                }
                writeBuffer();
                input.caret(Math.max(firstNonMaskPos, begin));
            }

            function shiftR(pos) {
                var i,
                    c,
                    j,
                    t;

                for (i = pos, c = settings.placeholder; i < len; i++) {
                    if (tests[i]) {
                        j = seekNext(i);
                        t = buffer[i];
                        buffer[i] = c;
                        if (j < len && tests[j].test(t)) {
                            c = t;
                        } else {
                            break;
                        }
                    }
                }
            }

            function keydownEvent(e) {
                var k = e.which,
                    pos,
                    begin,
                    end;

                //backspace, delete, and escape get special treatment
                if (k === 8 || k === 46 || (iPhone && k === 127)) {
                    pos = input.caret();
                    begin = pos.begin;
                    end = pos.end;

                    if (end - begin === 0) {
                        begin=k!==46?seekPrev(begin):(end=seekNext(begin-1));
                        end=k===46?seekNext(end):end;
                    }
                    clearBuffer(begin, end);
                    shiftL(begin, end - 1);

                    e.preventDefault();
                } else if (k == 27) {//escape
                    input.val(focusText);
                    input.caret(0, checkVal());
                    e.preventDefault();
                }
            }

            function keypressEvent(e) {
                var k = e.which,
                    pos = input.caret(),
                    p,
                    c,
                    next;

                if (e.ctrlKey || e.altKey || e.metaKey || k < 32) {//Ignore
                    return;
                } else if (k) {
                    if (pos.end - pos.begin !== 0){
                        clearBuffer(pos.begin, pos.end);
                        shiftL(pos.begin, pos.end-1);
                    }

                    p = seekNext(pos.begin - 1);
                    if (p < len) {
                        c = String.fromCharCode(k);
                        if (tests[p].test(c)) {
                            shiftR(p);

                            buffer[p] = c;
                            writeBuffer();
                            next = seekNext(p);

                            if(android){
                                setTimeout($.proxy($.fn.caret,input,next),0);
                            }else{
                                input.caret(next);
                            }

                            if (settings.completed && next >= len) {
                                settings.completed.call(input);
                            }
                        }
                    }
                    e.preventDefault();
                }
            }

            function clearBuffer(start, end) {
                var i;
                for (i = start; i < end && i < len; i++) {
                    if (tests[i]) {
                        buffer[i] = settings.placeholder;
                    }
                }
            }

            function writeBuffer() { input.val(buffer.join('')); }

            function checkVal(allow) {
                //try to place characters where they belong
                var test = input.val(),
                    lastMatch = -1,
                    i,
                    c;

                for (i = 0, pos = 0; i < len; i++) {
                    if (tests[i]) {
                        buffer[i] = settings.placeholder;
                        while (pos++ < test.length) {
                            c = test.charAt(pos - 1);
                            if (tests[i].test(c)) {
                                buffer[i] = c;
                                lastMatch = i;
                                break;
                            }
                        }
                        if (pos > test.length) {
                            break;
                        }
                    } else if (buffer[i] === test.charAt(pos) && i !== partialPosition) {
                        pos++;
                        lastMatch = i;
                    }
                }
                if (allow) {
                    writeBuffer();
                } else if (lastMatch + 1 < partialPosition) {
                    input.val("");
                    clearBuffer(0, len);
                } else {
                    writeBuffer();
                    input.val(input.val().substring(0, lastMatch + 1));
                }
                return (partialPosition ? i : firstNonMaskPos);
            }

            input.data($.mask.dataName,function(){
                return $.map(buffer, function(c, i) {
                    return tests[i]&&c!=settings.placeholder ? c : null;
                }).join('');
            });

            if (!input.attr("readonly"))
                input
                .one("unmask", function() {
                    input
                        .unbind(".mask")
                        .removeData($.mask.dataName);
                })
                .bind("focus.mask", function() {
                    clearTimeout(caretTimeoutId);
                    var pos,
                        moveCaret;

                    focusText = input.val();
                    pos = checkVal();
                    
                    caretTimeoutId = setTimeout(function(){
                        writeBuffer();
                        if (pos == mask.length) {
                            input.caret(0, pos);
                        } else {
                            input.caret(pos);
                        }
                    }, 10);
                })
                .bind("blur.mask", function() {
                    checkVal();
                    if (input.val() != focusText)
                        input.change();
                })
                .bind("keydown.mask", keydownEvent)
                .bind("keypress.mask", keypressEvent)
                .bind(pasteEventName, function() {
                    setTimeout(function() { 
                        var pos=checkVal(true);
                        input.caret(pos); 
                        if (settings.completed && pos == input.val().length)
                            settings.completed.call(input);
                    }, 0);
                });
            checkVal(); //Perform initial check for existing values
        });
    }
});


})(jQuery);

?>