function wopen(url) {
if (url) {
opwin = window.open(url);
opwin.focus();
}
}

function wopen_list(url) {
if (url) {
opwin = window.open(url,"Wname","width=520,height=520,scrollbars=yes,resizable=yes,toolbar=no,location=no,directories=no,status=no");
opwin.focus();
}
}

function wopen_list2(url,Wname,w,h) {
if (url) {
opwin = window.open(url,Wname,"width="+w+",height="+h+",scrollbars=yes,resizable=yes,toolbar=no,location=no,directories=no,status=no");
opwin.focus();
}
}

function wclose(){
window.close();
}