function json_encode(mixed_val) {
    var indent;
    var value = mixed_val;
    var i;
    var quote = function (string) {
        var escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g;
        var meta = {
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"' : '\\"',
            '\\': '\\\\'
        };
        escapable.lastIndex = 0;
        return escapable.test(string) ?
        '"' + string.replace(escapable, function (a) {
            var c = meta[a];
            return typeof c === 'string' ? c :
            '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
        }) + '"' :
        '"' + string + '"';
    }
    var str = function(key, holder) {
        var gap = '';
        var indent = ' ';
        var i = 0;
        var k = '';
        var v = '';
        var length = 0;
        var mind = gap;
        var partial = [];
        var value = holder[key];
        if (value && typeof value === 'object' &&
            typeof value.toJSON === 'function') {
            value = value.toJSON(key);
        }
        switch (typeof value) {
            case 'string':
                return quote(value);
            case 'number':
                return isFinite(value) ? String(value) : 'null';
            case 'boolean':
            case 'null':
                return String(value);
            case 'object':
                if (!value) {
                    return 'null';
                }
                gap += indent;
                partial = [];
                if (Object.prototype.toString.apply(value) === '[object Array]') {
                    length = value.length;
                    for (i = 0; i < length; i += 1) {
                        partial[i] = str(i, value) || 'null';
                    }
                    v = partial.length === 0 ? '[]' :
                    gap ? '[\n' + gap +
                    partial.join(',\n' + gap) + '\n' +
                    mind + ']' :
                    '[' + partial.join(',') + ']';
                    gap = mind;
                    return v;
                }
                for (k in value) {
                    if (Object.hasOwnProperty.call(value, k)) {
                        v = str(k, value);
                        if (v) {
                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
                        }
                    }
                }
                v = partial.length === 0 ? '{}' :
                gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' +
                mind + '}' : '{' + partial.join(',') + '}';
                gap = mind;
                return v;
        }
        return null;
    };
    return str('', {
        '': value
    });
}
function toggleSpoiler(s, shdr) {
 var mode = 0;
 for (var i=0; i<= s.childNodes.length; i++) {
 	var item = s.childNodes[i];
 	if (item.className == 'sp-body') {
 		mode = (item.style.display == 'block')?0:1;
		item.style.display = mode?'block':'none';
		break;
	}
 }
 for (var i=0; i<= shdr.childNodes.length; i++) {
 	var item = shdr.childNodes[i];
 	if (item.tagName == 'B') {
 		item.className = (mode?'expanded':'');
 		break;
 	}
 }	
}
function addcat(){
	if (document.getElementById('categories').value != '' && document.getElementById('catmenu').value != '') {
		document.getElementById('categories').value = document.getElementById('categories').value + ", " + document.getElementById('catmenu').value;
	}
	else if (document.getElementById('catmenu').value != '') {
		document.getElementById('categories').value = document.getElementById('catmenu').value;
	}
	document.getElementById('catmenu').options[document.getElementById('catmenu').selectedIndex] = null;
	if (document.getElementById('catmenu').options.length == 0) {
		document.getElementById('catmenu').disabled = true;
		document.getElementById('catbutton').disabled = true;
	}
}
function ShowOrHide(d1, d2) {
if (d1 != '') DoDiv(d1);
if (d2 != '') DoDiv(d2);
}
function DoDiv(id) {
var item = null;
if (document.getElementById) {
item = document.getElementById(id);
} else if (document.all){
item = document.all[id];
} else if (document.layers){
item = document.layers[id];
}
if (!item) {
}
else if (item.style) {
if (item.style.display == "none"){ item.style.display = ""; }
else {item.style.display = "none"; }
}else{ item.visibility = "show"; }
}
function check_uncheck_all(area, prefix) {
	var frm = area;
	var p = (prefix)?prefix:'';
	for (var i=0; i<frm.elements.length; i++) {
		var e = frm.elements[i];
		if ((e.type == "checkbox") && (e.name != "master_box") && 
			((p.length == 0)||(e.name.substr(0,p.length) == p))
		) {
			e.checked = frm.master_box.checked ? true : false;
		}
	}
}
function showpreview(image,name){
if (image != ""){
document.images[name].src = image;
} else {
document.images[name].src = "skins/images/blank.gif";
}
}
function insertext(open, close, field){
        try {
        	msgfield = document.getElementById((field=='')?'content':field);
        } catch (err) {
        	return false;
        }	
	if (document.selection && document.selection.createRange){
		msgfield.focus();
		sel = document.selection.createRange();
		sel.text = open + sel.text + close;
		msgfield.focus();
	}
	else if (msgfield.selectionStart || msgfield.selectionStart == "0"){
		var startPos = msgfield.selectionStart;
		var endPos = msgfield.selectionEnd;
		var scrollPos = msgfield.scrollTop;		

		msgfield.value = msgfield.value.substring(0, startPos) + open + msgfield.value.substring(startPos, endPos) + close + msgfield.value.substring(endPos, msgfield.value.length);
		msgfield.selectionStart = msgfield.selectionEnd = endPos + open.length + close.length;
		msgfield.scrollTop = scrollPos;
		msgfield.focus();
	}
	else {
		msgfield.value += open + close;
		msgfield.focus();
	}
	return true;
}
function setCookie(name, value){
document.cookie = name + "=" + value + "; path=/;" + " expires=Wed, 1 Jan 2020 00:00:00 GMT;";
}
function deleteCookie(name){
document.cookie = name + "=" + "; path=/;" + " expires=Sut, 1 Jan 2000 00:00:01 GMT;";
}
function insertimage(text, area) {
	var win = window.opener;
	var form = win.document.forms['form'];
	try {
	 var xarea = win.document.forms['DATA_tmp_storage'].area.value;
	 if (xarea != '') area = xarea;
	} catch(err) {;}
	var control = win.document.getElementById(area);            
	control.focus();
	if (win.selection && win.selection.createRange){
		sel = win.selection.createRange();
		sel.text = text = sel.text;
	} else
	if (control.selectionStart || control.selectionStart == "0"){
		var startPos = control.selectionStart;
		var endPos = control.selectionEnd;
		control.value = control.value.substring(0, startPos) + text + control.value.substring(startPos, control.value.length);
	} else {
		control.value += text;
	}
	control.focus();
}
function quote(q_name) {
	txt = ''
	if (document.getSelection) {
		txt = document.getSelection()
	}
	else if (document.selection) {
		txt = document.selection.createRange().text;
	}
	if (txt == "") {
		insertext('[b',']'+q_name+'[/b], ', '')
	}
	if (txt.replace(" ","") != "") {
		insertext('[quote='+q_name,']'+txt+'[/quote]', '')
	}
}
function confirmit(url, text){var agree = confirm(text);if (agree){document.location=url;}}
function emailCheck (emailStr) {
var emailPat=/^(.+)@(.+)$/
var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
var validChars="\[^\\s" + specialChars + "\]"
var quotedUser="(\"[^\"]*\")"
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
var atom=validChars + '+'
var word="(" + atom + "|" + quotedUser + ")"
var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")
var matchArray=emailStr.match(emailPat)
if (matchArray==null){return false}
var user=matchArray[1]
var domain=matchArray[2]
if (user.match(userPat)==null){return false}
var IPArray=domain.match(ipDomainPat)
if (IPArray!=null){for (var i=1;i<=4;i++){if IPArray[i]>255){return false}}return true}
var domainArray=domain.match(domainPat)
if (domainArray==null) {
    return false
}
var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>3){return false}if (len<2){return false}return true;}