var searchwindows = null;
function openSearchWindows() {
        var lists = document.getElementsByName('sitesearch');
        var site = "";
        for (var i = 0; i < lists.length; i++) {
                if (document.gs.sitesearch[i].checked) {
                        // checked. Do this.
                        site = document.gs.sitesearch[i].value;                 }
        }
        if (site != "") {
                return true;
        }
        // construct url
        var url = "http://www.google.com/search?hl=en&q="+ document.gs.q.value  + "&domains=ewatercrc.com.au&sitesearch=";

        searchwindows = window.open(url,'searchwindows','scrollbars=yes,menubar=no,height=400,width=600,resizable=yes,toolbar=no,location=yes,status=yes');
        return false;
}