/*
 * RCDb utils / helper functions
 * @author Chris Yap
 */

Function.prototype.bindScope = function ()
{
    var slice = Array.prototype.slice
    var args = slice.call(arguments, 0)
    var fn = this
    var obj = args.shift()
    
    return function ()
    {
        var args1 = slice.call(args, 0)
        var args2 = slice.call(arguments, 0)
        var l1 = args1.length, l2 = args2.length
        while (l2--)
        {
            args1[l1 + l2] = args2[l2]
        }
        return fn.apply(obj, args1)
    }
}

String.prototype.truncate = function (maxlen)
{
    if (this.length <= maxlen)
    {
        return this
    }
    
    return this.substr(0,maxlen-3)+'...'
}


function E()
{
    var e = $(document.createElement(arguments[0]))
    
    if (arguments.length > 1)
    {
        var args = Array.prototype.slice.call(arguments, 0)
        args.shift()
        
        if (typeof args[0] == 'string')
        {
            e.addClass(args.shift())
        }
        
        for (var i=0; i<args.length; i++)
        {
            if (args[i])
            {
                if (!args[i].jquery && typeof args[i].length != "undefined")
                {
                    args[i].forEach(function (_e)
                    {
                        e.append(_e)
                    })
                }
                else
                {
                    e.append(args[i])
                }
            }
        }
    }
    
    return e
}


function T(s)
{
    return $(document.createTextNode(s))
}


/**
 * --------------------------------------------------------------------
 * jQuery-Plugin "pngFix"
 * Version: 1.2, 09.03.2009
 * by Andreas Eberhard, andreas.eberhard@gmail.com
 *                      http://jquery.andreaseberhard.de/
 *
 * Copyright (c) 2007 Andreas Eberhard
 * Licensed under GPL (http://www.opensource.org/licenses/gpl-license.php)
 *
 * Changelog:
 *    09.03.2009 Version 1.2
 *    - Update for jQuery 1.3.x, removed @ from selectors
 *    11.09.2007 Version 1.1
 *    - removed noConflict
 *    - added png-support for input type=image
 *    - 01.08.2007 CSS background-image support extension added by Scott Jehl, scott@filamentgroup.com, http://www.filamentgroup.com
 *    31.05.2007 initial Version 1.0
 * --------------------------------------------------------------------
 * @example $(function(){$(document).pngFix();});
 * @desc Fixes all PNG's in the document on document.ready
 *
 * jQuery(function(){jQuery(document).pngFix();});
 * @desc Fixes all PNG's in the document on document.ready when using noConflict
 *
 * @example $(function(){$('div.examples').pngFix();});
 * @desc Fixes all PNG's within div with class examples
 *
 * @example $(function(){$('div.examples').pngFix( { blankgif:'ext.gif' } );});
 * @desc Fixes all PNG's within div with class examples, provides blank gif for input with png
 * --------------------------------------------------------------------
 */

(function($) {

jQuery.fn.pngFix = function(settings) {

	// Settings
	settings = jQuery.extend({
		blankgif: '/img/third_party/pngfix/blank.gif'
	}, settings);

	var ie55 = (navigator.appName == "Microsoft Internet Explorer" && parseInt(navigator.appVersion) == 4 && navigator.appVersion.indexOf("MSIE 5.5") != -1);
	var ie6 = (navigator.appName == "Microsoft Internet Explorer" && parseInt(navigator.appVersion) == 4 && navigator.appVersion.indexOf("MSIE 6.0") != -1);

	if (jQuery.browser.msie && (ie55 || ie6)) {

		//fix images with png-source
		jQuery(this).find("img[src$=.png]").each(function() {

			jQuery(this).attr('width',jQuery(this).width());
			jQuery(this).attr('height',jQuery(this).height());

			var prevStyle = '';
			var strNewHTML = '';
			var imgId = (jQuery(this).attr('id')) ? 'id="' + jQuery(this).attr('id') + '" ' : '';
			var imgClass = (jQuery(this).attr('class')) ? 'class="' + jQuery(this).attr('class') + '" ' : '';
			var imgTitle = (jQuery(this).attr('title')) ? 'title="' + jQuery(this).attr('title') + '" ' : '';
			var imgAlt = (jQuery(this).attr('alt')) ? 'alt="' + jQuery(this).attr('alt') + '" ' : '';
			var imgAlign = (jQuery(this).attr('align')) ? 'float:' + jQuery(this).attr('align') + ';' : '';
			var imgHand = (jQuery(this).parent().attr('href')) ? 'cursor:hand;' : '';
			if (this.style.border) {
				prevStyle += 'border:'+this.style.border+';';
				this.style.border = '';
			}
			if (this.style.padding) {
				prevStyle += 'padding:'+this.style.padding+';';
				this.style.padding = '';
			}
			if (this.style.margin) {
				prevStyle += 'margin:'+this.style.margin+';';
				this.style.margin = '';
			}
			var imgStyle = (this.style.cssText);

			strNewHTML += '<span '+imgId+imgClass+imgTitle+imgAlt;
			strNewHTML += 'style="position:relative;white-space:pre-line;display:inline-block;background:transparent;'+imgAlign+imgHand;
			strNewHTML += 'width:' + jQuery(this).width() + 'px;' + 'height:' + jQuery(this).height() + 'px;';
			strNewHTML += 'filter:progid:DXImageTransform.Microsoft.AlphaImageLoader' + '(src=\'' + jQuery(this).attr('src') + '\', sizingMethod=\'scale\');';
			strNewHTML += imgStyle+'"></span>';
			if (prevStyle != ''){
				strNewHTML = '<span style="position:relative;display:inline-block;'+prevStyle+imgHand+'width:' + jQuery(this).width() + 'px;' + 'height:' + jQuery(this).height() + 'px;'+'">' + strNewHTML + '</span>';
			}

			jQuery(this).hide();
			jQuery(this).after(strNewHTML);

		});

		// fix css background pngs
		jQuery(this).find("*").each(function(){
			var bgIMG = jQuery(this).css('background-image');
			if(bgIMG.indexOf(".png")!=-1){
				var iebg = bgIMG.split('url("')[1].split('")')[0];
				jQuery(this).css('background-image', 'none');
				jQuery(this).get(0).runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + iebg + "',sizingMethod='scale')";
			}
		});
		
		//fix input with png-source
		jQuery(this).find("input[src$=.png]").each(function() {
			var bgIMG = jQuery(this).attr('src');
			jQuery(this).get(0).runtimeStyle.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader' + '(src=\'' + bgIMG + '\', sizingMethod=\'scale\');';
   		jQuery(this).attr('src', settings.blankgif)
		});
	
	}
	
	return jQuery;

};

})(jQuery);


/*
 * JSON utils
 */
 
if(!this.JSON)this.JSON={};
	(function(){function k(a){return a<10?"0"+a:a}function n(a){o.lastIndex=0;return o.test(a)?'"'+a.replace(o,function(c){var d=q[c];return typeof d==="string"?d:"\\u"+("0000"+c.charCodeAt(0).toString(16)).slice(-4)})+'"':'"'+a+'"'}function l(a,c){var d,f,i=g,e,b=c[a];if(b&&typeof b==="object"&&typeof b.toJSON==="function")b=b.toJSON(a);if(typeof j==="function")b=j.call(c,a,b);switch(typeof b){case "string":return n(b);case "number":return isFinite(b)?String(b):"null";case "boolean":case "null":return String(b);
	case "object":if(!b)return"null";g+=m;e=[];if(Object.prototype.toString.apply(b)==="[object Array]"){f=b.length;for(a=0;a<f;a+=1)e[a]=l(a,b)||"null";c=e.length===0?"[]":g?"[\n"+g+e.join(",\n"+g)+"\n"+i+"]":"["+e.join(",")+"]";g=i;return c}if(j&&typeof j==="object"){f=j.length;for(a=0;a<f;a+=1){d=j[a];if(typeof d==="string")if(c=l(d,b))e.push(n(d)+(g?": ":":")+c)}}else for(d in b)if(Object.hasOwnProperty.call(b,d))if(c=l(d,b))e.push(n(d)+(g?": ":":")+c);c=e.length===0?"{}":g?"{\n"+g+e.join(",\n"+g)+
	"\n"+i+"}":"{"+e.join(",")+"}";g=i;return c}}if(typeof Date.prototype.toJSON!=="function"){Date.prototype.toJSON=function(){return isFinite(this.valueOf())?this.getUTCFullYear()+"-"+k(this.getUTCMonth()+1)+"-"+k(this.getUTCDate())+"T"+k(this.getUTCHours())+":"+k(this.getUTCMinutes())+":"+k(this.getUTCSeconds())+"Z":null};String.prototype.toJSON=Number.prototype.toJSON=Boolean.prototype.toJSON=function(){return this.valueOf()}}var p=/[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
	o=/[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,g,m,q={"\u0008":"\\b","\t":"\\t","\n":"\\n","\u000c":"\\f","\r":"\\r",'"':'\\"',"\\":"\\\\"},j;if(typeof JSON.stringify!=="function")JSON.stringify=function(a,c,d){var f;m=g="";if(typeof d==="number")for(f=0;f<d;f+=1)m+=" ";else if(typeof d==="string")m=d;if((j=c)&&typeof c!=="function"&&(typeof c!=="object"||typeof c.length!=="number"))throw new Error("JSON.stringify");return l("",
	{"":a})};if(typeof JSON.parse!=="function")JSON.parse=function(a,c){function d(f,i){var e,b,h=f[i];if(h&&typeof h==="object")for(e in h)if(Object.hasOwnProperty.call(h,e)){b=d(h,e);if(b!==undefined)h[e]=b;else delete h[e]}return c.call(f,i,h)}p.lastIndex=0;if(p.test(a))a=a.replace(p,function(f){return"\\u"+("0000"+f.charCodeAt(0).toString(16)).slice(-4)});if(/^[\],:{}\s]*$/.test(a.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,"@").replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,
	"]").replace(/(?:^|:|,)(?:\s*\[)+/g,""))){a=eval("("+a+")");return typeof c==="function"?d({"":a},""):a}throw new SyntaxError("JSON.parse");}})();

$.fn.serializeObject = function() {
	var o = {};
	var a = this.serializeArray();
	$.each(a, function() {
		if (o[this.name]) {
			if (!o[this.name].push) {
				o[this.name] = [o[this.name]];
			}
			o[this.name].push(this.value || '');
		} else {
			o[this.name] = this.value || '';
		}
	});
	return o;
}

$.postJSON = function(url, data, callback) {
    return jQuery.ajax({
        'type': 'POST',
        'url': url,
        'contentType': 'application/json',
        'data': JSON.stringify(data),
        'dataType': 'json',
        'success': callback
    });
}

jQuery.isJSON = function(str) {
	if (jQuery.trim(str) == '')
	{
		return false;
	}
	str = str.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
	return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
}