/**
 * Equal Heights Plugin
 * Equalize the heights of elements. Great for columns or any elements
 * that need to be the same size (floats, etc).
 * 
 * Version 1.0
 * Updated 12/10/2008
 *
 * Copyright (c) 2008 Rob Glazebrook (cssnewbie.com) 
 *
 * Usage: $(object).equalHeights([minHeight], [maxHeight]);
 * 
 * Example 1: $(".cols").equalHeights(); Sets all columns to the same height.
 * Example 2: $(".cols").equalHeights(400); Sets all cols to at least 400px tall.
 * Example 3: $(".cols").equalHeights(100,300); Cols are at least 100 but no more
 * than 300 pixels tall. Elements with too much content will gain a scrollbar.
 * 
 */

(function($) {
	$.fn.equalHeights = function(minHeight, maxHeight) {
		tallest = (minHeight) ? minHeight : 0;
		this.each(function() {
			if($(this).height() > tallest) {
				tallest = $(this).height();
			}
		});
		if((maxHeight) && tallest > maxHeight) tallest = maxHeight;
		return this.each(function() {
			$(this).height(tallest).css("overflow","auto");
		});
	}
})(jQuery);

(function($) {
	/**
	 * equalizes the heights of all elements in a jQuery collection
	 * thanks to John Resig for optimizing this!
	 * usage: $("#col1, #col2, #col3").equalizeCols();
	 */
	 
	$.fn.equalizeCols = function(minHeight){
		var height = (minHeight) ? minHeight : 0;
		var reset = $.browser.msie && $.browser.version < 7 ? "1%" : "auto";
  
		return this
			.css("height", reset)
			.each(function() {
				height = Math.max(height, this.offsetHeight);
			})
			.css("height", height)
			.each(function() {
				var h = this.offsetHeight;
				if (h > height) {
					$(this).css("height", height - (h - height));
				};
			});
			
	};
	
})(jQuery);

jQuery.onFontResize = (function ($) {
	// initialize
	$(document).ready(function () {
		var $resizeframe = $("<iframe />")
			.attr("id", "frame-onFontResize" + Date.parse(new Date))
			.addClass("div-onfontresize")
			.css({width: "100em", height: "10px", position: "absolute", borderWidth: 0, top: "-5000px", left: "-5000px"})
			.appendTo("body");
			
		if ($.browser.msie) {
			// use IE's native iframe resize event
			$resizeframe.bind("resize", function () {
				$.onFontResize.trigger($resizeframe[0].offsetWidth / 100);
			});
		} else {
			// everyone else uses script inside the iframe to detect resize
			var doc = $resizeframe[0].contentWindow || $resizeframe[0].contentDocument || $resizeframe[0].document;
			doc = doc.document || doc; 
			doc.open();
			doc.write('<scri' + 'pt>window.onload = function(){var em = parent.jQuery(".div-onfontresize")[0];window.onresize = function(){if(parent.jQuery.onFontResize){parent.jQuery.onFontResize.trigger(em.offsetWidth / 100);}}};</scri' + 'pt>');
			doc.close();
		}
		
		jQuery.onFontResize.initialSize = $resizeframe[0].offsetWidth / 100;
	});
	
	return {
		// public method, so it can be called from within the iframe
		trigger: function (em) {
			$(document).trigger("fontresize", [em]);
		}
	};
}) (jQuery);