/* Jayrock support */
(function ($) {
    var m = {
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"' : '\\"',
            '\\': '\\\\'
        },
        s = {
            'array': function (x) {
                var a = ['['], b, f, i, l = x.length, v;
                for (i = 0; i < l; i += 1) {
                    v = x[i];
                    f = s[typeof v];
                    if (f) {
                        v = f(v);
                        if (typeof v == 'string') {
                            if (b) {
                                a[a.length] = ',';
                            }
                            a[a.length] = v;
                            b = true;
                        }
                    }
                }
                a[a.length] = ']';
                return a.join('');
            },
            'boolean': function (x) {
                return String(x);
            },
            'null': function (x) {
                return "null";
            },
            'number': function (x) {
                return isFinite(x) ? String(x) : 'null';
            },
            'object': function (x) {
                if (x) {
                    if (x instanceof Array) {
                        return s.array(x);
                    }
                    var a = ['{'], b, f, i, v;
                    for (i in x) {
                        v = x[i];
                        f = s[typeof v];
                        if (f) {
                            v = f(v);
                            if (typeof v == 'string') {
                                if (b) {
                                    a[a.length] = ',';
                                }
                                a.push(s.string(i), ':', v);
                                b = true;
                            }
                        }
                    }
                    a[a.length] = '}';
                    return a.join('');
                }
                return 'null';
            },
            'string': function (x) {
                if (/["\\\x00-\x1f]/.test(x)) {
                    x = x.replace(/([\x00-\x1f\\"])/g, function(a, b) {
                        var c = m[b];
                        if (c) {
                            return c;
                        }
                        c = b.charCodeAt();
                        return '\\u00' +
                            Math.floor(c / 16).toString(16) +
                            (c % 16).toString(16);
                    });
                }
                return '"' + x + '"';
            }
        };

	$.toJSON = function(v) {
		var f = isNaN(v) ? s[typeof v] : s['number'];
		if (f) return f(v);
	};
	
	$.parseJSON = function(v, safe) {
		if (safe === undefined) safe = $.parseJSON.safe;
		if (safe && !/^("(\\.|[^"\\\n\r])*?"|[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t])+?$/.test(v))
			return undefined;
		return eval('('+v+')');
	};
	
	$.parseJSON.safe = false;

})(jQuery);

var JSON = function () {
    return {
        stringify: function (v) {
            return $.toJSON(v);
        },
        eval: function (text, filter) {
            return $.parseJSON(text);
        }
    }
}();

function jQueryChannel() {
    this.rpc = function(call) {
        if (!call.callback)
            throw new Error('Synchronous calls not supported.');
        $.ajax({
            type: "POST",
            url: call.url,
            data: $.toJSON(call.request),
            beforeSend: function(xhr) {
                xhr.setRequestHeader("X-JSON-RPC", call.request.method);
            },
            success: function(s) {
                call.callback($.parseJSON(s));
            }
         });
    }
}

/* Helpers */
var $value = function(id) {
	var el = $(id);
	if(el == null) {
		alert('Element with id = ' + id + ' not found.');
		return null;
	}
	return el.val(); 
};
var $dom = function(id){
	return document.getElementById(id);
};

/* Autocomplete */
jQuery.autocomplete = function(input, options) {
	// Create a link to self
	var me = this;

	// Create jQuery object for input element
	var $input = $(input).attr("autocomplete", "off");

	// Apply inputClass if necessary
	if (options.inputClass) $input.addClass(options.inputClass);

	// Create results
	var results = document.createElement("div");
	// Create jQuery object for results
	var $results = $(results);
	$results.hide().addClass(options.resultsClass).css("position", "absolute");
	if( options.width > 0 ) $results.css("width", options.width);

	// Add to body element
	$("body").append(results);

	input.autocompleter = me;

	var timeout = null;
	var prev = "";
	var active = -1;
	var cache = {};
	var keyb = false;
	var hasFocus = false;
	var lastKeyPressCode = null;

	// flush cache
	function flushCache(){
		cache = {};
		cache.data = {};
		cache.length = 0;
	};

	// flush cache
	flushCache();

	// if there is a data array supplied
	if( options.data != null ){
		var sFirstChar = "", stMatchSets = {}, row = [];

		// no callback was specified, we need to adjust the cache length to make sure it fits the local data store
		if( typeof options.callback != "function" ) options.cacheLength = 1;

		// loop through the array and create a lookup structure
		for( var i=0; i < options.data.length; i++ ){
			// if row is a string, make an array otherwise just reference the array
			row = ((typeof options.data[i] == "string") ? [options.data[i]] : options.data[i]);

			// if the length is zero, don't add to list
			if( row[0].length > 0 ){
				// get the first character
				sFirstChar = row[0].substring(0, 1).toLowerCase();
				// if no lookup array for this character exists, look it up now
				if( !stMatchSets[sFirstChar] ) stMatchSets[sFirstChar] = [];
				// if the match is a string
				stMatchSets[sFirstChar].push(row);
			}
		}

		// add the data items to the cache
		for( var k in stMatchSets ){
			// increase the cache size
			options.cacheLength++;
			// add to the cache
			addToCache(k, stMatchSets[k]);
		}
	}

	$input
	.keydown(function(e) {
		// track last key pressed
		lastKeyPressCode = e.keyCode;
		switch(e.keyCode) {
			case 38: // up
				e.preventDefault();
				moveSelect(-1);
				break;
			case 40: // down
				e.preventDefault();
				moveSelect(1);
				break;
			case 9:  // tab
			case 13: // return
				if( selectCurrent() ){
					// make sure to blur off the current field
					$input.get(0).blur();
					e.preventDefault();
				}
				break;
			default:
				active = -1;
				if (timeout) clearTimeout(timeout);
				timeout = setTimeout(function(){onChange();}, options.delay);
				break;
		}
	})
	.focus(function(){
		// track whether the field has focus, we shouldn't process any results if the field no longer has focus
		hasFocus = true;
	})
	.blur(function() {
		// track whether the field has focus
		hasFocus = false;
		hideResults();
	});

	hideResultsNow();

	function onChange() {
		// ignore if the following keys are pressed: [del] [shift] [capslock]
		if( lastKeyPressCode == 46 || (lastKeyPressCode > 8 && lastKeyPressCode < 32) ) return $results.hide();
		var v = $input.val();
		if (v == prev) return;
		prev = v;
		if (v.length >= options.minChars) {
			$input.addClass(options.loadingClass);
			requestData(v);
		} else {
			$input.removeClass(options.loadingClass);
			$results.hide();
		}
	};

 	function moveSelect(step) {

		var lis = $("li", results);
		if (!lis) return;

		active += step;

		if (active < 0) {
			active = 0;
		} else if (active >= lis.size()) {
			active = lis.size() - 1;
		}

		lis.removeClass("ac_over");

		$(lis[active]).addClass("ac_over");

		// Weird behaviour in IE
		// if (lis[active] && lis[active].scrollIntoView) {
		// 	lis[active].scrollIntoView(false);
		// }

	};

	function selectCurrent() {
		var li = $("li.ac_over", results)[0];
		if (!li) {
			var $li = $("li", results);
			if (options.selectOnly) {
				if ($li.length == 1) li = $li[0];
			} else if (options.selectFirst) {
				li = $li[0];
			}
		}
		if (li) {
			selectItem(li);
			return true;
		} else {
			return false;
		}
	};

	function selectItem(li) {
		if (!li) {
			li = document.createElement("li");
			li.extra = [];
			li.selectValue = {
				code: ''
			};
		}
		//var v = $.trim(li.selectValue.code ? li.selectValue.code : li.innerHTML);
		var v = li.selectValue;
		input.lastSelected = v;
		prev = v;
		$results.html("");
		$input.val(v.code);
		hideResultsNow();
		if (options.onItemSelect) setTimeout(function() { options.onItemSelect(li.selectValue) }, 1);
	};

	// selects a portion of the input string
	function createSelection(start, end){
		// get a reference to the input element
		var field = $input.get(0);
		if( field.createTextRange ){
			var selRange = field.createTextRange();
			selRange.collapse(true);
			selRange.moveStart("character", start);
			selRange.moveEnd("character", end);
			selRange.select();
		} else if( field.setSelectionRange ){
			field.setSelectionRange(start, end);
		} else {
			if( field.selectionStart ){
				field.selectionStart = start;
				field.selectionEnd = end;
			}
		}
		field.focus();
	};

	// fills in the input box w/the first match (assumed to be the best match)
	function autoFill(sValue){
		// if the last user key pressed was backspace, don't autofill
		if( lastKeyPressCode != 8 ){
			// fill in the value (keep the case the user has typed)
			$input.val($input.val() + sValue.substring(prev.length));
			// select the portion of the value not typed by the user (so the next character will erase)
			createSelection(prev.length, sValue.length);
		}
	};

	function showResults() {
		// get the position of the input field right now (in case the DOM is shifted)
		var pos = findPos(input);

		// reposition
		$results.css({
			width: 'auto',
			top: (pos.y + input.offsetHeight) + "px",
			left: pos.x + "px"
		});
		
		// either use the specified width, or autocalculate based on form element
		var iWidth = (options.width > 0) ? parseInt(options.width) : parseInt($input.width());
		if($results.width() < iWidth) {		
			$results.css({
				width: parseInt(iWidth) + "px"
			});
		} else if($results.width() > iWidth * 2) {
			$results.css({
				width: iWidth * 2 + "px"
			});
		}
		
		$results.show();
	};

	function hideResults() {
		if (timeout) clearTimeout(timeout);
		timeout = setTimeout(hideResultsNow, 200);
	};

	function hideResultsNow() {
		if (timeout) clearTimeout(timeout);
		$input.removeClass(options.loadingClass);
		if ($results.is(":visible")) {
			$results.hide();
		}
		if (options.mustMatch) {
			var v = $input.val();
			if (v != input.lastSelected) {
				selectItem(null);
			}
		}
	};

	function receiveData(q, data) {
		if (data) {
			$input.removeClass(options.loadingClass);
			results.innerHTML = "";

			// if the field no longer has focus or if there are no matches, do not display the drop down
			if( !hasFocus || data.length == 0 ) return hideResultsNow();

			if ($.browser.msie) {
				// we put a styled iframe behind the calendar so HTML SELECT elements don't show through
				$results.append(document.createElement('iframe'));
			}
			results.appendChild(dataToDom(data));
			// autofill in the complete box w/the first match as long as the user hasn't entered in more data
			if( options.autoFill && ($input.val().toLowerCase() == q.toLowerCase()) ) autoFill(data[0].code);
			showResults();
		} else {
			hideResultsNow();
		}
	};

	function dataToDom(data) {
		var ul = document.createElement("ul");
		var num = data.length;

		// limited results to a max number
		if( (options.maxItemsToShow > 0) && (options.maxItemsToShow < num) ) num = options.maxItemsToShow;

		for (var i=0; i < num; i++) {
			var row = data[i];
			if (!row) continue;
			var li = document.createElement("li");
			if (options.formatItem) {
				li.innerHTML = options.formatItem(row, i, num, $input.val());
				li.selectValue = row;
			} else {
				li.innerHTML = row.code;
				li.selectValue = row;
			}
			var extra = null;
			if (row.length > 1) {
				extra = [];
				for (var j=1; j < row.length; j++) {
					extra[extra.length] = row[j];
				}
			}
			li.extra = extra;
			ul.appendChild(li);
			$(li).hover(
				function() { $("li", ul).removeClass("ac_over"); $(this).addClass("ac_over"); active = $("li", ul).indexOf($(this).get(0)); },
				function() { $(this).removeClass("ac_over"); }
			).click(function(e) { e.preventDefault(); e.stopPropagation(); selectItem(this) });
		}
		return ul;
	};

	function requestData(q) {
		if (!options.matchCase) q = q.toLowerCase();
		var data = options.cacheLength ? loadFromCache(q) : null;
		// recieve the cached data
		if (data) {
			receiveData(q, data);
		// if an callback has been supplied, try loading the data now
		} else if(typeof options.callback == "function"){
			options.callback(q, function(data) {
				addToCache(q, data);
				receiveData(q, data);
			});
		// if there's been no data found, remove the loading class
		} else {
			$input.removeClass(options.loadingClass);
		}
	};

	function loadFromCache(q) {
		if (!q) return null;
		if (cache.data[q]) return cache.data[q];
		if (false) //options.matchSubset) 
		{
			for (var i = q.length - 1; i >= options.minChars; i--) {
				var qs = q.substr(0, i);
				var c = cache.data[qs];
				if (c) {
					var csub = [];
					for (var j = 0; j < c.length; j++) {
						var x = c[j];
						var x0 = x[0];
						if (matchSubset(x0, q)) {
							csub[csub.length] = x;
						}
					}
					return csub;
				}
			}
		}
		return null;
	};

	function matchSubset(s, sub) {
		if (!options.matchCase) s = s.toLowerCase();
		var i = s.indexOf(sub);
		if (i == -1) return false;
		return i == 0 || options.matchContains;
	};

	this.flushCache = function() {
		flushCache();
	};

	this.setExtraParams = function(p) {
		options.extraParams = p;
	};

	this.findValue = function(){
		var q = $input.val();

		if (!options.matchCase) q = q.toLowerCase();
		var data = options.cacheLength ? loadFromCache(q) : null;
		if (data) {
			findValueCallback(q, data);
		} else if(typeof options.callback == "function"){
			options.callback(q, function(data) {
				addToCache(q, data);
				receiveData(q, data);
			});
		} else {
			// no matches
			findValueCallback(q, null);
		}
	}

	function findValueCallback(q, data){
		if (data) $input.removeClass(options.loadingClass);

		var num = (data) ? data.length : 0;
		var li = null;

		for (var i=0; i < num; i++) {
			var row = data[i];

			if( row.code.toLowerCase() == q.toLowerCase() ){
				li = document.createElement("li");
				if (options.formatItem) {
					li.innerHTML = options.formatItem(row, i, num);
					li.selectValue = row;
				} else {
					li.innerHTML = row.code;
					li.selectValue = row;
				}
				var extra = null;
				if( row.length > 1 ){
					extra = [];
					for (var j=1; j < row.length; j++) {
						extra[extra.length] = row[j];
					}
				}
				li.extra = extra;
			}
		}

		if( options.onFindValue ) setTimeout(function() { options.onFindValue(li) }, 1);
	}

	function addToCache(q, data) {
		if (!data || !q || !options.cacheLength) return;
		if (!cache.length || cache.length > options.cacheLength) {
			flushCache();
			cache.length++;
		} else if (!cache[q]) {
			cache.length++;
		}
		cache.data[q] = data;
	};

	function findPos(obj) {
		var curleft = obj.offsetLeft || 0;
		var curtop = obj.offsetTop || 0;
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
		return {x:curleft,y:curtop};
	}
};

(function($){
	$.fn.extend({
		autocomplete: function(callback, options, data) {		
			// Make sure options exists
			options = options || {};
			// Set function as option
			options.callback = callback;
			// set some bulk local data
			options.data = ((typeof data == "object") && (data.constructor == Array)) ? data : null;

			// Set default values for required options
			options.inputClass = options.inputClass || "ac_input";
			options.resultsClass = options.resultsClass || "ac_results";
			options.lineSeparator = options.lineSeparator || "\n";
			options.cellSeparator = options.cellSeparator || "|";
			options.minChars = options.minChars || 2;
			options.delay = options.delay || 400;
			options.matchCase = options.matchCase || 0;
			options.matchSubset = options.matchSubset || 1;
			options.matchContains = options.matchContains || 0;
			options.cacheLength = options.cacheLength || 1;
			options.mustMatch = options.mustMatch || 0;
			options.extraParams = options.extraParams || {};
			options.loadingClass = options.loadingClass || "ac_loading";
			options.selectFirst = options.selectFirst || false;
			options.selectOnly = options.selectOnly || false;
			options.maxItemsToShow = options.maxItemsToShow || -1;
			options.autoFill = options.autoFill || false;
			options.width = parseInt(options.width, 10) || 0;

			this.each(function() {
				var input = this;
				new jQuery.autocomplete(input, options);
			});

			// Don't break the chain
			return this;
		},
		
		autocompleteArray: function(data, options) {
			return this.autocomplete(null, options, data);
		},
		
		indexOf: function(e){
			for( var i=0; i<this.length; i++ ){
				if( this[i] == e ) return i;
			}
			return -1;
		}
	});
})(jQuery);

(function($) {
   
	$.fn.extend({   
    /**
     * Apply the mousewheel event to the elements in the jQuery object.
     * The handler function should be prepared to take the event object
     * and a param called 'delta'. The 'delta' param is a number
     * either > 0 or < 0. > 0 = up and < 0 = down.
     *
     * The pageX, pageY, clientX and clientY event properties
     * are fixed in Firefox.
     *
     * @example $("p").mousewheel(function(event, delta){
     *   if (delta > 0)
     *     // do something on mousewheel scroll up
     *   else if (delta < 0)
     *     //do something on mousewheel scroll down
     * });
     */
    mousewheel: function(f) {
        if (!f.guid) f.guid = $.event.guid++;
        if (!$.event._mwCache) $.event._mwCache = [];
       
        return this.each( function() {
            if (this._mwHandlers) return this._mwHandlers.push(f);
            else this._mwHandlers = [];
           
            this._mwHandlers.push(f);
           
            var s = this;
           
            this._mwHandler = function(e) {
                e = $.event.fix(e || window.event);
                $.extend(e, this._mwCursorPos || {});
                var delta = 0, returnValue = true;
               
                if (e.wheelDelta)  delta = e.wheelDelta/120;
                if (e.detail)      delta = -e.detail/3;
                if (window.opera)  delta = -e.wheelDelta;
               
                for (var i=0; i<s._mwHandlers.length; i++)
                    if (s._mwHandlers[i])
                        if ( s._mwHandlers[i].call(s, e, delta) === false ) {
                            returnValue = false;
                            e.preventDefault();
                            e.stopPropagation();
                        }
               
                return returnValue;
            };
           
            if ($.browser.mozilla && !this._mwFixCursorPos) {
                // fix pageX, pageY, clientX and clientY for mozilla
                this._mwFixCursorPos = function(e) {
                    this._mwCursorPos = {
                        pageX: e.pageX,
                        pageY: e.pageY,
                        clientX: e.clientX,
                        clientY: e.clientY
                    };
                };
                $(this).bind('mousemove', this._mwFixCursorPos);
            }
           
            if (this.addEventListener)
                if ($.browser.mozilla) this.addEventListener('DOMMouseScroll', this._mwHandler, false);
                else                   this.addEventListener('mousewheel',     this._mwHandler, false);
            else
                this.onmousewheel = this._mwHandler;
           
            $.event._mwCache.push( $(this) );
        });
    },
   
    /**
     * This method removes one or all applied mousewheel events from the elements.
     * You can remove a single handler function by passing it as the first param.
     * If you do not pass anything, it will remove all handlers.
     *
     */
	unmousewheel: function(f) {
		return this.each( function() {
			if ( f && this._mwHandlers ) {
				for (var i=0; i<this._mwHandlers.length; i++)
					if (this._mwHandlers[i] && this._mwHandlers[i].guid == f.guid)
						delete this._mwHandlers[i];
			} else {
				if ($.browser.mozilla && !this._mwFixCursorPos)
					$(this).unbind('mousemove', this._mwFixCursorPos);
	               
				if (this.addEventListener)
					if ($.browser.mozilla) this.removeEventListener('DOMMouseScroll', this._mwHandler, false);
					else                   this.removeEventListener('mousewheel',     this._mwHandler, false);
				else
					this.onmousewheel = null;
	               
				this._mwHandlers = this._mwHandler = this._mwFixCursorPos = this._mwCursorPos = null;
			}
		});
	}

	});

	// clean-up
	$(window).one('unload', function() {
		var els = $.event._mwCache || [];
		for (var i=0; i<els.length; i++)
			els[i].unmousewheel();
	});

})(jQuery);

(function($){
    $.fn.extend({
        center: function () {
            return this.each(function() {
                var top = ($(window).height() - $(this).outerHeight()) / 2 + $(window).scrollTop();
                var left = ($(window).width() - $(this).outerWidth()) / 2 + $(window).scrollLeft();
                $(this).css({position:'absolute', margin:0, top: (top > 0 ? top : 0)+'px', left: (left > 0 ? left : 0)+'px'});
            });
        }
    }); 
})(jQuery);