function PostBackOnReturn(event, postbackMethod) {
    if (event) {
        if (event.keyCode == 13) {
            __doPostBack(postbackMethod, '');
        }
    }
}

//clearing input fields start
function ClearInput(value, id) {
    var input = document.getElementById(id);
    if (value == input.value) {
        input.value = '';
    }
    else {
        input.value = input.value;
    }
}