function SearchSite() {

    var url = 'http://www.google.com/cse?cx=' + document.getElementById('cx').value +
        '&ie=' + document.getElementById('ie').value +
        '&q=' + document.getElementById('q').value +
        '&sa=Search&siteurl=www.belaweb.com%2F';
    alert(url);
    popUp(url,600,500);
}

function popUp(nom, w, h) {
    var url = nom;
    if (w == "")
        w = 550;
    if (h == "")
        h = 600;

    newWin = window.open(url, 'PopUpWindow', 'width=' + w + ', height=' + h + ',resizable,status,toolbar,scrollbars');
    newWin.focus();

}