An old script for squeezing in formatted text that I need to rewrite.

jquery.shrunkfit.js

(function( $ ){

	$.fn.shrunkFit = function( options ) {

		return this.each(function() {

			var settings = $.extend({
				'increment'	:	0.05,
				'throttle'	:	25
			}, options);

			// Set up our test elements
			var shrunkWrap = false;
			var scount = $('body').data('scount');
			if ( scount === undefined ) {
				scount = 1;
			}
			if ( $(this).hasClass("shrunkrun") === false ) {
				$(this).addClass("shrunkrun");
				$(this).addClass("shrunkrun-"+scount);
				$('body').data('scount',scount);

				$(this).html(function (i, html) {
					return html.replace(/^[^a-zA-Z]*([a-zA-Z])/g, '<span class="shrunkWrap charTest">$1</span>');
				});
				var charTestHeight = $(this).children('.charTest').height();

				$(this).css('font-size',charTestHeight+'px');
				$(".shrunkrun-"+scount).data("charTestHeight",charTestHeight);

				shrunkWrap = $(this).text().split(' ');
				for ( var i = 0, len = shrunkWrap.length; i < len; i++ ) {
					shrunkWrap[i] = '<span class="shrunkWrap word word-' + i + '">' + shrunkWrap[i] + '</span>';
				}
				$(this).html(shrunkWrap.join(' '));

				scount = scount+1;
			}
			else {
				// reset charTestHeight and remove previous settings
				var charTestHeight = $(this).data("charTestHeight");
				$(this).children('.shrunkWrap.word').css('font-size','1em');
			}
		
			// check each word for a height greater than charTestHeight
			var tooTallTest = true;
			var thisTooTallTest = false;
			var latestEm = 1;
			while ( tooTallTest === true ) {

				thisTooTallTest = false;
				$(this).children('.shrunkWrap.word').each(function() {
					if ( $(this).height() > charTestHeight ) {
						thisTooTallTest = true;
					}
				});

				if ( thisTooTallTest === true ) {
					latestEm = latestEm - settings.increment;
					$(this).children('.shrunkWrap.word').css('font-size',latestEm+'em');
				}
				else {
					break;
				}

			}

		});//
		
	};

})( jQuery );