function OnlyNumbers(numericTextbox, e, dec) {
    var key;
    var keychar;

    if (window.event)
        key = window.event.keyCode;
    else if (e)
        key = e.which;
    else
        return true;
    keychar = String.fromCharCode(key);

    // control keys
    if ((key == null) || (key == 0) || (key == 9) || (key == 13) || (key == 27))
        return true;

    // numbers
    else if ((("0123456789").indexOf(keychar) > -1))
        return true;

    // decimal point jump
    else if (dec && (keychar == ".")) {
        myfield.form.elements[dec].focus();
        return false;
    } else
        return false;
}

function alphaNumericTextbox(txtTitle, e) {
    var key;
    var keychar;
    if (window.event)
        key = window.event.keyCode;
    else if (e)
        key = e.which;
    else
        return true;
    keychar = String.fromCharCode(key);

    var regex = /^[a-zA-Z0-9./]$/;
    if (regex.test(keychar)) {

        return true;
    } else {

        return false;
    }
}

function MaxTextboxLength(textbox,len)
{
    if (textbox.value.length>=len)
    {
        return false;
    }

}