Font Size to fit container's witdh

app.js

jQuery(document).ready(function(){
	jQuery('#container1 .auto-size').textAutoSize({
		width: 			249,
		maxSize: 		200,
		minSize: 		5,
		//testEl:			jQuery('#auto-size-test'),
		mode:				"ite-binary"
	});
	jQuery('#container2 .auto-size').textAutoSize({
		maxSize: 		100,
		minSize: 		10,
		//testEl:			jQuery('#auto-size-test2'),
		mode:				"rec-binary"
	});
});

jquery.autosize.js

jQuery.fn.textWidth = function(fontSize, testEl){
	var toRet = testEl.css({
		"font-size": fontSize+'px'
	});
	var text = jQuery(this).html();
	toRet.html(text);
	jQuery(this).append(toRet);
	var width = toRet.outerWidth(true);
	toRet.html('');
	return width;
};

jQuery.fn.textAutoSize = function(options){
	var testElID = 'test-'+Math.floor((Math.random()*10000)+1);
	settings = {
		width: 			200,
		maxSize: 		100,
		minSize: 		10,
		testEl:			jQuery('<span/>',{"class":"antani"}),
		maxIterations: 	20,
		minGrain:		0.5,
		maxGrain:		0.5
	};
	
	if(options) jQuery.extend(settings,options);
	settings.testEl.attr('id', testElID);
	
	jQuery(this).each(function(){
		if(jQuery(this).text().lenght == 0) return;
		var currentSize;
		var currentWidth;
		var maxIterations = settings.maxIterations;
		var boundMax = settings.maxSize;
		var boundMin = settings.minSize;
		
		do {
			maxIterations--;
			currentSize = ( boundMax - boundMin ) / 2 + boundMin;
			currentWidth = jQuery(this).textWidth(currentSize, settings.testEl);
			if(currentWidth > settings.width){
				boundMax = currentSize - settings.maxGrain;
			} else {
				boundMin = currentSize + settings.minGrain;
			}
		} while( boundMin < boundMax && maxIterations > 0);
		
		jQuery(this).css('font-size',currentSize+'px');
		/*console.log(jQuery(this).text());
		console.log(currentSize);
		console.log(20-maxIterations);
		console.log('-------------------');*/
	});

	jQuery('#'+testElID).remove();
};

style.css

.project-.text-container {
	margin: 10px;
	width: 250px; 
	border: 1px solid #c00;
	line-height: 1;
	font-family: Century Gothic, CenturyGothic, AppleGothic, sans-serif;
	text-align: center;
	/*white-space: nowrap;*/
}

.auto-size {
	margin: 0;
	padding: 0;
}