/*
 * Ext JS Library 2.2
 * Copyright(c) 2006-2008, Ext JS, LLC.
 * licensing@extjs.com
 * 
 * http://extjs.com/license
 */

/* Fix for Opera, which does not seem to include the map function on Array's */if(!Array.prototype.map){    Array.prototype.map = function(fun){	var len = this.length;	if(typeof fun != "function"){	    throw new TypeError();	}	var res = new Array(len);	var thisp = arguments[1];	for(var i = 0; i < len; i++){	    if(i in this){		res[i] = fun.call(thisp, this[i], i, this);	    }	}        return res;     };}/* Paging Memory Proxy, allows to use paging grid with in memory dataset */Ext.data.PagingMemoryProxy = function(data) {	Ext.data.PagingMemoryProxy.superclass.constructor.call(this);	this.data = data;};Ext.extend(Ext.data.PagingMemoryProxy, Ext.data.MemoryProxy, {	load : function(params, reader, callback, scope, arg) {		params = params || {};		var result;		try {			result = reader.readRecords(this.data);		}catch(e){			this.fireEvent("loadexception", this, arg, null, e);			callback.call(scope, null, arg, false);			return;		}				// filtering		if (params.filter!==undefined) {			result.records = result.records.filter(function(el){			    if (typeof(el)=="object"){					var att = params.filterCol || 0;					return String(el.data[att]).match(params.filter)?true:false;			    } else {					return String(el).match(params.filter)?true:false;			    }			});			result.totalRecords = result.records.length;		}				// sorting		if (params.sort!==undefined) {		    // use integer as params.sort to specify column, since arrays are not named		    // params.sort=0; would also match a array without columns		    var dir = String(params.dir).toUpperCase() == "DESC" ? -1 : 1;        	var fn = function(v1, v2){                return v1 > v2 ? 1 : (v1 < v2 ? -1 : 0);            };		    result.records.sort(function(a, b) {				var v = 0;				if (typeof(a)=="object"){				    v = fn(a.data[params.sort], b.data[params.sort]) * dir;				} else {				    v = fn(a, b) * dir;				}				if (v==0) {				    v = (a.index < b.index ? -1 : 1);				}				return v;		    });		}		// paging (use undefined cause start can also be 0 (thus false))		if (params.start!==undefined && params.limit!==undefined) {			result.records = result.records.slice(params.start, params.start+params.limit);		}				callback.call(scope, result, arg, true);	}});