function submitOnEnter(e, c) {
    var keynum;
    var keychar;
    var numcheck;
    if (window.event) // IE
    {
        keynum = e.keyCode;
    }
    else if (e.which) // Netscape/Firefox/Opera
    {
        keynum = e.which;
    }
    if (keynum == 13) {
        if (document.getElementById(c)) {
            var btnToClick = document.getElementById(c)
            btnToClick.click();
        }
        return false;
    }
}