function checkReturn(obj, e) {

    if (e.keyCode == 13 || e.which == 13) {
        var form = window.document.forms[0];
        var clicknext = false;
        var nextobj;
        for (var i = 0; i < form.elements.length; i++) {
            if (form.elements[i] == obj) clicknext = true;

            if (clicknext) {
                nextobj = form.elements[i];
                if (nextobj.type.toUpperCase() == "BUTTON" || nextobj.type.toUpperCase() == "SUBMIT") {
                    // for google search, move focus from the search input textbox to avoid page submit or url redirection by other code
                    if (obj.id == "searchText" && nextobj.id == "searchButton")
                        nextobj.focus();

                    nextobj.click();
                    break;
                }
            }
        }
        return false;
    }
    return true;
}