/**
 * Cut and set the string of jQuery object to the size of options.length. 
 * This is useful to cut the multibyte string (UTF8)without breaking the char at the end. 
 * The sizes of the cut strings look similar even though ASCII and multibytes are mixed.                        
@param  options ={length: 20, ellipsisText: "..."};
 * length is the cut size of string.  
 * ellipsisText is the string added at the end of the cut string.
@return  jQuery object with a string cut to the size
 * 
@author
 * Heeseob Park
 * cutString is free software under the GNU General Public License 
 */
(function($){
$.fn.cutString=function(options){
	var defaults = {  
			   length: 20,  
			   ellipsisText: "..."  
			  };  
	  
	var options = $.extend(defaults, options);  
	return this.each(function(){
		   obj = $(this);  
		   var str = $.trim(obj.text()),
		   strLen=str.length,
			   optLen=options.length,
			   len=0;
		  function cut(){
	            for (var i=0; i<strLen; i++) {
	                len += (str.charCodeAt(i) > 128) ? 2 : 1;
	                if (len > optLen) return str.substring(0,i) + options.ellipsisText;
	            }
			   return str;
		  }   
		   obj.text(cut());   
	});
	
};
})(jQuery);