function nothing() {}

function t(name, type) {
    document.getElementById(name).style.display = type;
}

function setCookie(name, value, expires, path, domain, secure) {
  var curCookie = name + "=" + escape(value) +
      ((expires) ? "; expires=" + expires.toGMTString() : "") +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      ((secure) ? "; secure" : "");
  document.cookie = curCookie;
}

function getCookie(name) {
  var dc = document.cookie;
  var prefix = name + "=";
  var begin = dc.indexOf("; " + prefix);
  if (begin == -1) {
    begin = dc.indexOf(prefix);
    if (begin != 0) return null;
  } else
    begin += 2;
  var end = document.cookie.indexOf(";", begin);
  if (end == -1)
    end = dc.length;
  return unescape(dc.substring(begin + prefix.length, end));
}

function deleteCookie(name, path, domain) {
  if (getCookie(name)) {
    document.cookie = name + "=" +
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}

function RM_popup(url,name,w,h) {
    var url;
    if (!url) {
        alert('popupimage() error: no url supplied');
        return false;
    }
    if(!name) var name = 'popup';
    if(!w) var w = 480;
    if(!h) var h = 545;
    var screen_w = screen.availWidth || screen.width;
    var screen_h = screen.availHeight || screen.height;
    var opts = 'width='+w+',height='+h+',scrollbars=yes,resizable=yes,menubar=yes';
    if (screen_h > 0 && screen_w > 0) {
        var ha_value = (screen_w / 2) - (w / 2);
        var va_value = (screen_h / 2) - (h / 2);
        opts += ',left='+ha_value+',top='+va_value;
    }
    var confirmWin = window.open(url, name, opts);
    if (confirmWin != null) {
        confirmWin.focus();
    }
}

function toggleMenuOld(id, keep) {
    if(keep == true) {
        MM_showHideLayers('menu'+id,"","show");
    }
    else {
        if(getCookie('menu') == id) {
            MM_showHideLayers('menu'+id,"","hide");
            setCookie('menu', "");
        }
        else {
            MM_showHideLayers('menu'+id,"","show");
            setCookie('menu', id);
        }
    }
}

function toggleMenu(id, keep) {
    if(keep == true) {
        MM_showHideLayers('menu'+id,"","show");
    }
    else {
        if(getCookie('menu'+id) != null) {
            MM_showHideLayers('menu'+id,"","hide");
            deleteCookie('menu'+id, "/");
        }
        else {
            MM_showHideLayers('menu'+id,"","show");
            setCookie('menu'+id, true, "", "/");
        }
    }
}

function MM_showHideLayers() { //v3.0
    var i,p,v,obj,args=MM_showHideLayers.arguments;
    for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
        if (obj.style) {
            obj=obj.style; v=(v=='show')?'':(v='hide')?'none':v;
        }
        obj.display=v;
    }
}

function MM_findObj(n, d) { //v4.0
    var p,i,x;  if(!d) d=document;
    if((p=n.indexOf("?"))>0&&parent.frames.length) {
        d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);
    }
    if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
    for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
    if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function validateForm(form) {
    var msg = "";
    var required;

    if(form == null) {
        form = document.forms[0];
    }


    for(i = 0; i < form.elements.length; i++) {
        if(form.elements[i].name == '_required') {
            required = form.elements[i].value.split(",");
        }
    }

    if(required.length > 0) {
        for(i = 0; i < required.length; i ++) {
            for(x = 0; x < form.elements.length; x++) {
                var checked = false;
                if(form.elements[x].name == required[i] || form.elements[x].name == required[i]+'[]') {
                    if(form.elements[x].type == "checkbox" || form.elements[x].type == "radio") {
                        if(form.elements[x].checked == true) checked = true;
                    }
                    else {
                        if(form.elements[x].value != "") checked = true;
                    }
                    if(checked == true) break;
                }
            }
            if(checked == false) {
                msg += "\n"+required[i].replace(/_/g, " ");
            }
        }

        if(msg.length > 0) {
            alert("Please fill in the following fields before submitting:\n"+msg);
            return false;
        }
        else {
            for(i = 0; i < form.elements.length; i++) {
                // fix spam field
                if(form.elements[i].name == '_spamFix') {
                    form.elements[i].value = 'yes';
                }
            }
            return true;
        }
    }
    return true;
}