// ********* 蝮�ｭ牙牡繧贋ｻ倥￠繧ｹ繧ｯ繝ｪ繝励ヨ ***********
// 謾ｹ騾�縺ｪ縺ｩ縺ｯ縺碑�逕ｱ縺ｫ陦後▲縺ｦ邨先ｧ九〒縺吶′縲√％縺ｮ繧ｹ繧ｯ繝ｪ繝励ヨ縺昴�繧ゅ�繧定ｲｩ螢ｲ縺吶ｋ縺薙→繧堤ｦ√§縺ｾ縺吶€�
// web螻� 蜀�陸縲€http://www.web-naito.net/
// ***************** 2013.9.8 *****************

(function( $ ){  

	$.fn.justify = function(options) {

		return this.each(function(){

			var words               = $(this).text(),
				origFontSize        = $(this).css("font-size").replace("px", ""),
				wordsLength			= $(this).text().length,
				lineText			= "",
				fontRatio			= 0;

			if(wordsLength == 1) {
				$(this).css("text-align", "center");
				return;
			}

			// 迴ｾ蝨ｨ縺ｮ譁�ｫ�縺ｮ蟷�ｒ貂ｬ繧�
			function grabPixelLineSize(text) {
				var dummy = '<div id="dummy" style="margin:0; padding:0; display: inline-block; font-size:' + origFontSize + ';">' + text + '</div>';
				$("body").append(dummy);
				var emW   = $("#dummy").width();
				$("#dummy").remove();
				return emW;
            };

			var wordsWidth = grabPixelLineSize(words); // 譁�ｭ怜�縺ｮ蟷�ｒ蜿門ｾ励☆繧�

			// 隕ｪ隕∫ｴ�縺ｮ遖∝援蜃ｦ逅�ｒ辟｡蜉ｹ縺ｫ縺吶ｋ
			$(this).css("word-break", "keep-all");

			var parentWidth = $(this).width(); // 隕ｪ隕∫ｴ�縺ｮ蟷�ｒ蜿門ｾ励☆繧�

			var fontRatio = ( parentWidth - wordsWidth ) / (wordsLength - 1) /*- origFontSize.replace("px", "")*/;

			lineText += '<span style="letter-spacing: ' + fontRatio + 'px !important">' + words.slice(0, wordsLength-1)  + '</span>' + words.slice(wordsLength-1);

			$(this).html(lineText);

		});

	};

})(jQuery);