$.fn.truncate = function(options) {
	var options = options || {height : '100px'}
    
    var el = $(this);
    
    var lineHeight = parseInt(el.css('lineHeight'));
    var boxHeight = parseInt(el.height());
    
    var totalLines = boxHeight/lineHeight;
	console.log(totalLines);
	
	// incomplete! finish before 21st Nov.
};