Scaling $(body) font-size to window size

font-scaling.js

$(document).ready(function() {
    var $body = $('body'); //Cache this for performance

    var setBodyScale = function() {
        var scaleSource = $body.width(),
            scaleFactor = 0.9,                     
            maxScale = 1000,
            minScale = 30;
            
        var fontSize = scaleSource * scaleFactor; 
        if (fontSize > maxScale) fontSize = maxScale;
        if (fontSize < minScale) fontSize = minScale;

        $('body').css('font-size', fontSize + '%');
    }

    $(window).resize(function(){
        setBodyScale();
    });

  //Fire it when the page first loads:
  setBodyScale();
});

credit comes from http://stackoverflow.com/questions/5358183/is-it-possible-to-dynamically-scale-text-size-based-on-browser-width