var w_f=1;

var win;

function MM_openBrWindow(theURL,winName,features) { //v1.2

 if (w_f==1) {

    win=window.open(theURL,winName,features);

    w_f=1;

  } else {

    if (win.winOpen==null) {win=window.open(theURL,winName,features);}

    win.location=theURL;

    win.focus();

  }}