function toShowMap(shop_id) {
    var isFF = (navigator.appName == "Netscape");
    var sUrl = "/map.php?sid="+shop_id;
    if(isFF) {
        //Firefox
        fw = window.open("","map","scrollbars=yes,dialog=yes,modal=yes,width=1024,height=650,resizable=yes");
        fw.focus();
        window.setTimeout("document.frm.action='" + sUrl + "';document.frm.target='map';document.frm.submit();",500);
    } else {
        //IE
        var obj = new Object();
        fw = window.open("","map","scrollbars=yes,width=1024,height=650,resizable=yes,modal=yes");
        fw.focus();
        window.setTimeout("document.frm.action='" + sUrl + "';document.frm.target='map';document.frm.submit();",500);
    }
    return false;
}