var Middle=null;
function pop_open(w,h,s_data){
ww=w.substring(0,w.length);
hh=h.substring(0,h.length);
ss_data = s_data;
setTimeout('go_s(ww,hh,ss_data)',1000);
}
    function go_s(wi,he,s_data) {
 Middle = window.open(s_data, "ESS", "toolbar=0,scrollbars=yes,resizable=yes,width="+wi+",height="+he);
    }