function openSubmit(who) { var p = '63'; var pi = 'Trekjerijk.com';
window.open("inschrijven/?p=" + p + "&pi=" + pi + "&geslacht=" + who, "form", "left="
+ ((screen.width-600)/2) + ",top=" + ((screen.height-500)/2) + ",width=450,height=430"
+ ",border=0,scrollbars=0,resize=0,status=0,toolbar=0,menubar=0,location=0" );
return; }