function TextBoxKeyDown(evt) {
    var e = evt ? evt : window.event;
    if (!e) return;
    var key = 0;
    if (e.keyCode) { key = e.keyCode; }
    else if (typeof (e.which) != 'undefined') { key = e.which; }
    if (e.shiftKey == true || (((key < 48 || key > 57) && (key < 96 || key > 105)) && key != 8 && key != 37 && e.ctrlKey == false && key != 39 && key != 46 && key != 9))
        return false;
}
function TextBoxChange(e) {
    var t = '';
    for (var i = 0; i < e.value.length; i++) {
        if (e.value.charCodeAt(i) >= 48 && e.value.charCodeAt(i) <= 57) {
            t += e.value.charAt(i).toString();
        }
    }
}