/*-------------------------------------------------------------------- 
 * JQuery Plugin: "EqualHeights" & "EqualWidths"
 * by:	Scott Jehl, Todd Parker, Maggie Costello Wachs (http://www.filamentgroup.com)
 *
 * Copyright (c) 2007 Filament Group
 * Licensed under GPL (http://www.opensource.org/licenses/gpl-license.php)
 *
 * Description: Compares the heights or widths of the top-level children of a provided element 
 		and sets their min-height to the tallest height (or width to widest width). Sets in em units 
 		by default if pxToEm() method is available.
 * Dependencies: jQuery library, pxToEm method	(article: http://www.filamentgroup.com/lab/retaining_scalable_interfaces_with_pixel_to_em_conversion/)							  
 * Usage Example: $(element).equalHeights();
   						      Optional: to set min-height in px, pass a true argument: $(element).equalHeights(true);
 * Version: 2.0, 07.24.2008
 * Changelog:
 *  08.02.2007 initial Version 1.0
 *  07.24.2008 v 2.0 - added support for widths
--------------------------------------------------------------------*/

$.fn.equalHeights = function(px) {
	$(this).each(function(){
		var currentTallest = 0;
		$(this).children().each(function(i){
			if ($(this).height() > currentTallest) { currentTallest = $(this).height(); }
		});
		if (!px || !Number.prototype.pxToEm) currentTallest = currentTallest.pxToEm(); //use ems unless px is specified
		// for ie6, set height since min-height isn't supported
		if ($.browser.msie && $.browser.version == 6.0) { $(this).children().css({'height': currentTallest}); }
		$(this).children().css({'min-height': currentTallest}); 
	});
	return this;
};

// just in case you need it...
$.fn.equalWidths = function(px) {
	$(this).each(function(){
		var currentWidest = 0;
		$(this).children().each(function(i){
				if($(this).width() > currentWidest) { currentWidest = $(this).width(); }
		});
		if(!px || !Number.prototype.pxToEm) currentWidest = currentWidest.pxToEm(); //use ems unless px is specified
		// for ie6, set width since min-width isn't supported
		if ($.browser.msie && $.browser.version == 6.0) { $(this).children().css({'width': currentWidest}); }
		$(this).children().css({'min-width': currentWidest}); 
	});
	return this;
};


/*-------------------------------------------------------------------- 
 * javascript method: "pxToEm"
 * by:
   Scott Jehl (scott@filamentgroup.com) 
   Maggie Wachs (maggie@filamentgroup.com)
   http://www.filamentgroup.com
 *
 * Copyright (c) 2008 Filament Group
 * Dual licensed under the MIT (filamentgroup.com/examples/mit-license.txt) and GPL (filamentgroup.com/examples/gpl-license.txt) licenses.
 *
 * Description: Extends the native Number and String objects with pxToEm method. pxToEm converts a pixel value to ems depending on inherited font size.  
 * Article: http://www.filamentgroup.com/lab/retaining_scalable_interfaces_with_pixel_to_em_conversion/
 * Demo: http://www.filamentgroup.com/examples/pxToEm/	 	
 *							
 * Options:  	 								
 		scope: string or jQuery selector for font-size scoping
 		reverse: Boolean, true reverses the conversion to em-px
 * Dependencies: jQuery library						  
 * Usage Example: myPixelValue.pxToEm(); or myPixelValue.pxToEm({'scope':'#navigation', reverse: true});
 *
 * Version: 2.0, 08.01.2008 
 * Changelog:
 *		08.02.2007 initial Version 1.0
 *		08.01.2008 - fixed font-size calculation for IE
--------------------------------------------------------------------*/

Number.prototype.pxToEm = String.prototype.pxToEm = function(settings){
	//set defaults
	settings = jQuery.extend({
		scope: 'body',
		reverse: false
	}, settings);
	
	var pxVal = (this == '') ? 0 : parseFloat(this);
	var scopeVal;
	var getWindowWidth = function(){
		var de = document.documentElement;
		return self.innerWidth || (de && de.clientWidth) || document.body.clientWidth;
	};	
	
	/* When a percentage-based font-size is set on the body, IE returns that percent of the window width as the font-size. 
		For example, if the body font-size is 62.5% and the window width is 1000px, IE will return 625px as the font-size. 	
		When this happens, we calculate the correct body font-size (%) and multiply it by 16 (the standard browser font size) 
		to get an accurate em value. */
				
	if (settings.scope == 'body' && $.browser.msie && (parseFloat($('body').css('font-size')) / getWindowWidth()).toFixed(1) > 0.0) {
		var calcFontSize = function(){		
			return (parseFloat($('body').css('font-size'))/getWindowWidth()).toFixed(3) * 16;
		};
		scopeVal = calcFontSize();
	}
	else { scopeVal = parseFloat(jQuery(settings.scope).css("font-size")); };
			
	var result = (settings.reverse == true) ? (pxVal * scopeVal).toFixed(2) + 'px' : (pxVal / scopeVal).toFixed(2) + 'em';
	return result;
};

/*! Copyright (c) 2008 Brandon Aaron (http://brandonaaron.net)
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) 
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 *
 * Version: 1.0.3
 * Requires jQuery 1.1.3+
 * Docs: http://docs.jquery.com/Plugins/livequery
 */

(function($) {
	
$.extend($.fn, {
	livequery: function(type, fn, fn2) {
		var self = this, q;
		
		// Handle different call patterns
		if ($.isFunction(type))
			fn2 = fn, fn = type, type = undefined;
			
		// See if Live Query already exists
		$.each( $.livequery.queries, function(i, query) {
			if ( self.selector == query.selector && self.context == query.context &&
				type == query.type && (!fn || fn.$lqguid == query.fn.$lqguid) && (!fn2 || fn2.$lqguid == query.fn2.$lqguid) )
					// Found the query, exit the each loop
					return (q = query) && false;
		});
		
		// Create new Live Query if it wasn't found
		q = q || new $.livequery(this.selector, this.context, type, fn, fn2);
		
		// Make sure it is running
		q.stopped = false;
		
		// Run it immediately for the first time
		q.run();
		
		// Contnue the chain
		return this;
	},
	
	expire: function(type, fn, fn2) {
		var self = this;
		
		// Handle different call patterns
		if ($.isFunction(type))
			fn2 = fn, fn = type, type = undefined;
			
		// Find the Live Query based on arguments and stop it
		$.each( $.livequery.queries, function(i, query) {
			if ( self.selector == query.selector && self.context == query.context && 
				(!type || type == query.type) && (!fn || fn.$lqguid == query.fn.$lqguid) && (!fn2 || fn2.$lqguid == query.fn2.$lqguid) && !this.stopped )
					$.livequery.stop(query.id);
		});
		
		// Continue the chain
		return this;
	}
});

$.livequery = function(selector, context, type, fn, fn2) {
	this.selector = selector;
	this.context  = context || document;
	this.type     = type;
	this.fn       = fn;
	this.fn2      = fn2;
	this.elements = [];
	this.stopped  = false;
	
	// The id is the index of the Live Query in $.livequery.queries
	this.id = $.livequery.queries.push(this)-1;
	
	// Mark the functions for matching later on
	fn.$lqguid = fn.$lqguid || $.livequery.guid++;
	if (fn2) fn2.$lqguid = fn2.$lqguid || $.livequery.guid++;
	
	// Return the Live Query
	return this;
};

$.livequery.prototype = {
	stop: function() {
		var query = this;
		
		if ( this.type )
			// Unbind all bound events
			this.elements.unbind(this.type, this.fn);
		else if (this.fn2)
			// Call the second function for all matched elements
			this.elements.each(function(i, el) {
				query.fn2.apply(el);
			});
			
		// Clear out matched elements
		this.elements = [];
		
		// Stop the Live Query from running until restarted
		this.stopped = true;
	},
	
	run: function() {
		// Short-circuit if stopped
		if ( this.stopped ) return;
		var query = this;
		
		var oEls = this.elements,
			els  = $(this.selector, this.context),
			nEls = els.not(oEls);
		
		// Set elements to the latest set of matched elements
		this.elements = els;
		
		if (this.type) {
			// Bind events to newly matched elements
			nEls.bind(this.type, this.fn);
			
			// Unbind events to elements no longer matched
			if (oEls.length > 0)
				$.each(oEls, function(i, el) {
					if ( $.inArray(el, els) < 0 )
						$.event.remove(el, query.type, query.fn);
				});
		}
		else {
			// Call the first function for newly matched elements
			nEls.each(function() {
				query.fn.apply(this);
			});
			
			// Call the second function for elements no longer matched
			if ( this.fn2 && oEls.length > 0 )
				$.each(oEls, function(i, el) {
					if ( $.inArray(el, els) < 0 )
						query.fn2.apply(el);
				});
		}
	}
};

$.extend($.livequery, {
	guid: 0,
	queries: [],
	queue: [],
	running: false,
	timeout: null,
	
	checkQueue: function() {
		if ( $.livequery.running && $.livequery.queue.length ) {
			var length = $.livequery.queue.length;
			// Run each Live Query currently in the queue
			while ( length-- )
				$.livequery.queries[ $.livequery.queue.shift() ].run();
		}
	},
	
	pause: function() {
		// Don't run anymore Live Queries until restarted
		$.livequery.running = false;
	},
	
	play: function() {
		// Restart Live Queries
		$.livequery.running = true;
		// Request a run of the Live Queries
		$.livequery.run();
	},
	
	registerPlugin: function() {
		$.each( arguments, function(i,n) {
			// Short-circuit if the method doesn't exist
			if (!$.fn[n]) return;
			
			// Save a reference to the original method
			var old = $.fn[n];
			
			// Create a new method
			$.fn[n] = function() {
				// Call the original method
				var r = old.apply(this, arguments);
				
				// Request a run of the Live Queries
				$.livequery.run();
				
				// Return the original methods result
				return r;
			}
		});
	},
	
	run: function(id) {
		if (id != undefined) {
			// Put the particular Live Query in the queue if it doesn't already exist
			if ( $.inArray(id, $.livequery.queue) < 0 )
				$.livequery.queue.push( id );
		}
		else
			// Put each Live Query in the queue if it doesn't already exist
			$.each( $.livequery.queries, function(id) {
				if ( $.inArray(id, $.livequery.queue) < 0 )
					$.livequery.queue.push( id );
			});
		
		// Clear timeout if it already exists
		if ($.livequery.timeout) clearTimeout($.livequery.timeout);
		// Create a timeout to check the queue and actually run the Live Queries
		$.livequery.timeout = setTimeout($.livequery.checkQueue, 20);
	},
	
	stop: function(id) {
		if (id != undefined)
			// Stop are particular Live Query
			$.livequery.queries[ id ].stop();
		else
			// Stop all Live Queries
			$.each( $.livequery.queries, function(id) {
				$.livequery.queries[ id ].stop();
			});
	}
});

// Register core DOM manipulation methods
$.livequery.registerPlugin('append', 'prepend', 'after', 'before', 'wrap', 'attr', 'removeAttr', 'addClass', 'removeClass', 'toggleClass', 'empty', 'remove');

// Run Live Queries when the Document is ready
$(function() { $.livequery.play(); });


// Save a reference to the original init method
var init = $.prototype.init;

// Create a new init method that exposes two new properties: selector and context
$.prototype.init = function(a,c) {
	// Call the original init and save the result
	var r = init.apply(this, arguments);
	
	// Copy over properties if they exist already
	if (a && a.selector)
		r.context = a.context, r.selector = a.selector;
		
	// Set properties
	if ( typeof a == 'string' )
		r.context = c || document, r.selector = a;
	
	// Return the result
	return r;
};

// Give the init function the jQuery prototype for later instantiation (needed after Rev 4091)
$.prototype.init.prototype = $.prototype;
	
})(jQuery);