function showDiv(el) {
	document.getElementById(el).style.display = '';
}

function hideDiv(el) {
	document.getElementById(el).style.display = 'none';
}

function deleteIP() {
	if (document.frm.ban_ip.selectedIndex == -1) {
		alert('Please select an IP address from the list!');
		return false;
	}
	else {
		return confirm('Delete '+document.frm.ban_ip[document.frm.ban_ip.selectedIndex].text+'?');
	}
}

function deleteKeyword() {
	if (document.frm.ban_keyword.selectedIndex == -1) {
		alert('Please select a keyword from the list!');
		return false;
	}
	else {
		return confirm('Delete '+document.frm.ban_keyword[document.frm.ban_keyword.selectedIndex].text+'?');
	}
}

function validateIP() {
	var ipPattern = /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/;
	if (!document.frm.add_ip.value.match(ipPattern)) {
		alert('Please enter a valid IP address!');
		return false;
	}
	else {
		return true;
	}
}

function validateKeyword() {
	if (document.frm.add_keyword.value == '') {
		alert('Please enter a keyword!');
		return false;
	}
	else {
		return true;
	}
}

/*==================================================
  Set the tabber options (must do this before including tabber.js)
  ==================================================*/
var tabberOptions = {

  'cookie':"tabber", /* Name to use for the cookie */

  'onLoad': function(argsObj)
  {
    var t = argsObj.tabber;
    var i;

    /* Optional: Add the id of the tabber to the cookie name to allow
       for multiple tabber interfaces on the site.  If you have
       multiple tabber interfaces (even on different pages) I suggest
       setting a unique id on each one, to avoid having the cookie set
       the wrong tab.
    */
    if (t.id) {
      t.cookie = t.id + t.cookie;
    }

    /* If a cookie was previously set, restore the active tab */
    i = parseInt(getCookie(t.cookie));
    if (isNaN(i)) { return; }
    t.tabShow(i);
  },

  'onClick':function(argsObj)
  {
    var c = argsObj.tabber.cookie;
    var i = argsObj.index;
    setCookie(c, i);
  }
};

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

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";
    }
}