;(function($) {
	$.ui = $.ui || {};
	$.extend($.ui, {
		plugin: {
			add: function(module, option, set) { var proto = $.ui[module].prototype; for(var i in set) { proto.plugins[i] = proto.plugins[i] || []; proto.plugins[i].push([option, set[i]]); } },
			call: function(instance, name, arguments) { var set = instance.plugins[name]; if(!set) return; for (var i = 0; i < set.length; i++) { if (instance.options[set[i][0]]) set[i][1].apply(instance.element, arguments); } }
		},
		cssCache: {},
		css: function(name) { if ($.ui.cssCache[name]) return $.ui.cssCache[name]; var tmp = $('<div class="ui-resizable-gen">').addClass(name).css({position:'absolute', top:'-5000px', left:'-5000px', display:'block'}).appendTo('body'); $.ui.cssCache[name] = !!( (!/auto|default/.test(tmp.css('cursor')) || (/^[1-9]/).test(tmp.css('height')) || (/^[1-9]/).test(tmp.css('width')) ||  !(/none/).test(tmp.css('backgroundImage')) || !(/transparent|rgba\(0, 0, 0, 0\)/).test(tmp.css('backgroundColor'))) );
			try { $('body').get(0).removeChild(tmp.get(0));	} catch(e){}
			return $.ui.cssCache[name];
		},
		disableSelection: function(e) { e.unselectable = "on"; e.onselectstart = function() {	return false; }; if (e.style) e.style.MozUserSelect = "none"; },
		enableSelection: function(e) { e.unselectable = "off"; e.onselectstart = function() { return true; }; if (e.style) e.style.MozUserSelect = ""; },
		hasScroll: function(e, a) { var scroll = /top/.test(a||"top") ? 'scrollTop' : 'scrollLeft', has = false; if (e[scroll] > 0) return true; e[scroll] = 1; has = e[scroll] > 0 ? true : false; e[scroll] = 0; return has;  }
	});
	$.each( ['Left', 'Top'], function(i, name) { if(!$.fn['scroll'+name]) $.fn['scroll'+name] = function(v) { return v != undefined ? this.each(function() { this == window || this == document ? window.scrollTo(name == 'Left' ? v : $(window)['scrollLeft'](), name == 'Top'  ? v : $(window)['scrollTop']()) : this['scroll'+name] = v; }) : this[0] == window || this[0] == document ? self[(name == 'Left' ? 'pageXOffset' : 'pageYOffset')] || $.boxModel && document.documentElement['scroll'+name] || document.body['scroll'+name] : this[0][ 'scroll' + name ]; }; });
	var _remove = $.fn.remove;
	$.fn.extend({ 
	    position: function() { var offset = this.offset(); var offsetParent = this.offsetParent(); var parentOffset = offsetParent.offset(); return { top:  offset.top - num(this[0], 'marginTop')  - parentOffset.top - num(offsetParent, 'borderTopWidth'), left: offset.left - num(this[0], 'marginLeft')  - parentOffset.left - num(offsetParent, 'borderLeftWidth') }; },
		offsetParent: function() { var offsetParent = this[0].offsetParent; while ( offsetParent && (!/^body|html$/i.test(offsetParent.tagName) && $.css(offsetParent, 'position') == 'static') ) offsetParent = offsetParent.offsetParent; return $(offsetParent); },
		mouseInteraction: function(o) { return this.each(function() { new $.ui.mouseInteraction(this, o); }); },
		removeMouseInteraction: function(o) { return this.each(function() { if($.data(this, "ui-mouse")) $.data(this, "ui-mouse").destroy(); }); },
		remove: function() { jQuery("*", this).add(this).trigger("remove"); return _remove.apply(this, arguments ); }
	});
	function num(el, prop) { return parseInt($.curCSS(el.jquery?el[0]:el,prop,true))||0; };
	$.ui.mouseInteraction = function(element, options) { var self = this; this.element = element; $.data(this.element, "ui-mouse", this); this.options = $.extend({}, options); $(element).bind('mousedown.draggable', function() { return self.click.apply(self, arguments); }); if($.browser.msie) $(element).attr('unselectable', 'on'); $(element).mouseup(function() { if(self.timer) clearInterval(self.timer); }); };
	$.extend($.ui.mouseInteraction.prototype, {
		destroy: function() { $(this.element).unbind('mousedown.draggable'); },
		trigger: function() { return this.click.apply(this, arguments); },
		click: function(e) { if( e.which != 1 || $.inArray(e.target.nodeName.toLowerCase(), this.options.dragPrevention || []) != -1 || (this.options.condition && !this.options.condition.apply(this.options.executor || this, [e, this.element])) ) return true; var self = this; var initialize = function() { self._MP = { left: e.pageX, top: e.pageY }; $(document).bind('mouseup.draggable', function() { return self.stop.apply(self, arguments); }); $(document).bind('mousemove.draggable', function() { return self.drag.apply(self, arguments); }); if(!self.initalized && Math.abs(self._MP.left-e.pageX) >= self.options.distance || Math.abs(self._MP.top-e.pageY) >= self.options.distance) { if(self.options.start) self.options.start.call(self.options.executor || self, e, self.element); if(self.options.drag) self.options.drag.call(self.options.executor || self, e, this.element); self.initialized = true; } }; if(this.options.delay) { if(this.timer) clearInterval(this.timer); this.timer = setTimeout(initialize, this.options.delay); } else { initialize(); } return false; },
		stop: function(e) { var o = this.options; if(!this.initialized) return $(document).unbind('mouseup.draggable').unbind('mousemove.draggable'); if(this.options.stop) this.options.stop.call(this.options.executor || this, e, this.element); $(document).unbind('mouseup.draggable').unbind('mousemove.draggable'); this.initialized = false; return false; },
		drag: function(e) { var o = this.options; if ($.browser.msie && !e.button) return this.stop.apply(this, [e]); if(!this.initialized && (Math.abs(this._MP.left-e.pageX) >= o.distance || Math.abs(this._MP.top-e.pageY) >= o.distance)) { if(this.options.start) this.options.start.call(this.options.executor || this, e, this.element); this.initialized = true; } else { if(!this.initialized) return false; } if(o.drag) o.drag.call(this.options.executor || this, e, this.element); return false; }
	});
})(jQuery);