function onFocus_txt(txtId, texto) {
    txt = document.getElementById(txtId);
    if (txt.value == texto) {
        txt.value = "";
    }
}

function onLostFocus_txt(txtId, texto) {
    txt = document.getElementById(txtId);
    if (txt.value == "") {
        txt.value = texto;
    }
}

function KeyDownHandler(maskExtenderId) {
    /*
    if (navigator.appName != "Microsoft Internet Explorer") {
    if (event.keyCode == 8 || event.keyCode == 46) {
    var txtElement = $get(event.srcElement.id);

    if (txtElement.AjaxControlToolkitTextBoxWrapper) {

    txtElement.AjaxControlToolkitTextBoxWrapper.set_Value('');
    }
    else {

    txtElement.value = '';
    }

    txtElement.select();
    }
    }
    */
    if (navigator.appName != "Microsoft Internet Explorer") {
        if (event.keyCode == 35 || event.keyCode == 36) { // Home and End buttons functionality

            var txtElement = $get(event.srcElement.id);
            var txtElementText = GetTextElementValue(event.srcElement.id);

            if (event.keyCode == 36) {//Home button
                setCaretPosition(txtElement, 0);
            }

            if (event.keyCode == 35) {//End button
                setCaretPosition(txtElement, txtElementText.length);
            }

        }


        if (event.keyCode == 8 || event.keyCode == 46) {


            var txtElement = $get(event.srcElement.id);
            var txtElementText = GetTextElementValue(event.srcElement.id);
            var txtElementCursorPosition = doGetCaretPosition(txtElement);
            var maskExtender = $find(maskExtenderId);

            var start = txtElement.selectionStart;
            var end = txtElement.selectionEnd;
            var selectedSymbols = end - start;

            if (event.keyCode == 8) //BackSpace
            {
                if (selectedSymbols > 0) {//if there is selection(more then 1 symbol)


                    var str1 = txtElementText.substr(0, start);

                    var str2 = txtElementText.substr(end);

                    var str = str1 + "_" + str2;

                    //alert(str);

                    if (str.length < txtElementText.length) str = appendStrWithChar(str, txtElementText, "_");

                    SetTextElementValue(event.srcElement.id, str);

                    //txtElement.value = str;

                    maskExtender._LogicTextMask = deletePromptChars(str, "_");

                    setCaretPosition(txtElement, start);

                }
                else {

                    if ((txtElementCursorPosition - 1) >= 0) {

                        var symbol_to_delete = txtElementText[txtElementCursorPosition - 1];

                        if (symbol_to_delete == "_" || symbol_to_delete == "+" || symbol_to_delete == "-" || symbol_to_delete == "/") {

                            setCaretPosition(txtElement, txtElementCursorPosition - 1);

                        }
                        else {

                            var str1 = txtElementText.substr(0, txtElementCursorPosition - 1);

                            var str2 = txtElementText.substr(txtElementCursorPosition);

                            var str = str1 + "_" + str2;

                            

                            if (str.length < txtElementText.length) str = appendStrWithChar(str, txtElementText, "_");

                            SetTextElementValue(event.srcElement.id, str);

                            //txtElement.value = str;

                            maskExtender._LogicTextMask = deletePromptChars(str, "_");

                            setCaretPosition(txtElement, txtElementCursorPosition - 1);

                            //var real_text = deletePromptChars(str, "_");

                        }

                    }

                }



            }

            if (event.keyCode == 46) //Delete
            {

                if (txtElementCursorPosition >= 0 && txtElementCursorPosition < txtElementText.length && ((selectedSymbols <= 1 && txtElementText[txtElementCursorPosition] != "_") || selectedSymbols > 1)) {

                    if (selectedSymbols > 1) {//if there is selection(more then 1 symbol)

                        var str1 = txtElementText.substr(0, start);

                        var str2 = txtElementText.substr(end);

                        var str = str1 + "_" + str2;

                        if (str.length < txtElementText.length) str = appendStrWithChar(str, txtElementText, "_");

                        SetTextElementValue(event.srcElement.id, str);

                        //txtElement.value = str;

                        maskExtender._LogicTextMask = deletePromptChars(str, "_");

                        setCaretPosition(txtElement, start);

                    }
                    else {//no selection or 1 symbol selected

                        var symbol_to_delete = txtElementText[txtElementCursorPosition];

                        if (symbol_to_delete != "_" && symbol_to_delete != "+" && symbol_to_delete != "-" && symbol_to_delete != "/"  ) {

                            var str1 = txtElementText.substr(0, txtElementCursorPosition);

                            var str2 = txtElementText.substr(txtElementCursorPosition + 1);

                            var str = str1 + "_" + str2;

                            if (str.length < txtElementText.length) str = appendStrWithChar(str, txtElementText, "_");

                            SetTextElementValue(event.srcElement.id, str);

                            //txtElement.value = str;

                            maskExtender._LogicTextMask = deletePromptChars(str, "_");

                            setCaretPosition(txtElement, txtElementCursorPosition);
                        }
                    }
                }
            }
        }
    }
}


function GetTextElementValue(elementId) {

    var textBox = $get(elementId), text;

    if (textBox.AjaxControlToolkitTextBoxWrapper) {

        text = textBox.AjaxControlToolkitTextBoxWrapper.get_Value();

    }
    else {

        text = textBox.value;

    }


    return text;

}


function SetTextElementValue(elementId, someText) {

    var textBox = $get(elementId);

    if (textBox.AjaxControlToolkitTextBoxWrapper) {

        textBox.AjaxControlToolkitTextBoxWrapper.set_Value(someText);

    }
    else {

        textBox.value = someText;

    }

}


function appendStrWithChar(str, templateStr, appChar) {

    var newStr = str;

    var difference = templateStr.length - newStr.length;


    if (difference > 0) {

        for (i = 0; i < difference; i++) { newStr = newStr + "_"; }

    }

    return newStr;

}


function deletePromptChars(str, promptChar) {

    var newStr = str;

    for (i = 0; i < newStr.length; i++) {

        if (str[i] == promptChar) {

            newStr = newStr.substr(0, i);

            return newStr;

        }

    }

}


function doGetCaretPosition(ctrl) {

    var CaretPos = 0; // IE Support

    if (document.selection) {

        ctrl.focus();

        var Sel = document.selection.createRange();

        Sel.moveStart('character', -ctrl.value.length);

        CaretPos = Sel.text.length;

    }

    // Firefox support

    else if (ctrl.selectionStart || ctrl.selectionStart == '0')

        CaretPos = ctrl.selectionStart;

    return (CaretPos);

}


function setCaretPosition(ctrl, pos) {

    if (ctrl.setSelectionRange) {

        ctrl.focus();

        ctrl.setSelectionRange(pos, pos);

    }

    else if (ctrl.createTextRange) {

        var range = ctrl.createTextRange();

        range.collapse(true);

        range.moveEnd('character', pos);

        range.moveStart('character', pos);

        range.select();

    }

}


function SetUniqueRadioButton(nameregex, rid) {
    re = new RegExp(nameregex);
    rb = document.getElementById(rid);
    var inputs = document.getElementsByTagName('input');
    for (i = 0; i < inputs.length; i++) {
        elm = inputs[i]
        if (elm.type == 'radio') {
            if (re.test(elm.name)) {
                elm.checked = false;
            }
        }
    }

    rb.checked = true;
}

$(document).ready(function () {


    // Closing notifications 
    // this is the class that we will target
    $(".hideit").click(function () {
        //fades the notification out	
        $(this).fadeOut(700);
    });

});