var zChar = new Array(' ', '(', ')', '-', '.');
    var maxphonelength = 13;
    var phonevalue1;
    var phonevalue2;
    var cursorposition;
    
    function ParseForNumber1(object) {
        phonevalue1 = ParseChar(object.value, zChar);
    }
    
    function ParseForNumber2(object) {
        phonevalue2 = ParseChar(object.value, zChar);
    }
    
    function backspacerUP(object, e) {
        if (e) {
            e = e
        } else {
            e = window.event
        }
        if (e.which) {
            var keycode = e.which
            } else {
                var keycode = e.keyCode
                }
        
        ParseForNumber1(object)
        
        if (keycode >= 48) {
            ValidatePhone(object)
        }
    }
    
    function backspacerDOWN(object, e) {
        if (e) {
            e = e
        } else {
            e = window.event
        }
        if (e.which) {
            var keycode = e.which
            } else {
                var keycode = e.keyCode
                }
        ParseForNumber2(object)
    }
    
    function GetCursorPosition() {
        
        var t1 = phonevalue1;
        var t2 = phonevalue2;
        var bool = false
        for (i = 0; i < t1.length; i++) {
            if (t1.substring(i, 1) != t2.substring(i, 1)) {
                if (!bool) {
                    cursorposition = i
                    bool = true
                }
            }
        }
    }
    
    function ValidatePhone(object) {
        
        var p = phonevalue1
        
        p = p.replace(/[^\d]*/gi, "")
        
        if (p.length < 3) {
            object.value = p
        } else if (p.length == 3) {
            pp = p;
            d4 = p.indexOf('(')
            d5 = p.indexOf(')')
            if (d4 == -1) {
                pp = "(" + pp;
            }
            if (d5 == -1) {
                pp = pp + ")";
            }
            object.value = pp;
        } else if (p.length > 3 && p.length < 7) {
            p = "(" + p;
            l30 = p.length;
            p30 = p.substring(0, 4);
            p30 = p30 + ")"
            
            p31 = p.substring(4, l30);
            pp = p30 + p31;
            
            object.value = pp;
            
        } else if (p.length >= 7) {
            p = "(" + p;
            l30 = p.length;
            p30 = p.substring(0, 4);
            p30 = p30 + ")"
            
            p31 = p.substring(4, l30);
            pp = p30 + p31;
            
            l40 = pp.length;
            p40 = pp.substring(0, 8);
            p40 = p40 + "-"
            
            p41 = pp.substring(8, l40);
            ppp = p40 + p41;
            
            object.value = ppp.substring(0, maxphonelength);
        }
        
        GetCursorPosition()
        
        if (cursorposition >= 0) {
            if (cursorposition == 0) {
                cursorposition = 2
            } else if (cursorposition <= 2) {
                cursorposition = cursorposition + 1
            } else if (cursorposition <= 5) {
                cursorposition = cursorposition + 2
            } else if (cursorposition == 6) {
                cursorposition = cursorposition + 2
            } else if (cursorposition == 7) {
                cursorposition = cursorposition + 4
                e1 = object.value.indexOf(')')
                e2 = object.value.indexOf('-')
                if (e1 > -1 && e2 > -1) {
                    if (e2 - e1 == 4) {
                        cursorposition = cursorposition - 1
                    }
                }
            } else if (cursorposition < 11) {
                cursorposition = cursorposition + 3
            } else if (cursorposition == 11) {
                cursorposition = cursorposition + 1
            } else if (cursorposition >= 12) {
                cursorposition = cursorposition
            }
            
            var txtRange = object.createTextRange();
            txtRange.moveStart("character", cursorposition);
            txtRange.moveEnd("character", cursorposition - object.value.length);
            txtRange.select();
        }
        
    }
    
    function ParseChar(sStr, sChar) {
        if (sChar.length == null) {
            zChar = new Array(sChar);
        } else zChar = sChar;
        
        for (i = 0; i < zChar.length; i++) {
            sNewStr = "";
            
            var iStart = 0;
            var iEnd = sStr.indexOf(sChar[i]);
            
            while (iEnd != -1) {
                sNewStr += sStr.substring(iStart, iEnd);
                iStart = iEnd + 1;
                iEnd = sStr.indexOf(sChar[i], iStart);
            }
            sNewStr += sStr.substring(sStr.lastIndexOf(sChar[i]) + 1, sStr.length);
            
            sStr = sNewStr;
        }
        
        return sNewStr;
    }