jQuery: Text Resizing Feature

script.js

// text resizing feature
	$(".text-size").on('click','a',function(){
    var $this = $(this),
        $body = $("body").eq(0);

    if($this.hasClass("small")){
      $body.addClass("small").removeClass("large normal");
    }
    else if($this.hasClass("normal")){
      $body.addClass("normal").removeClass("large small");
    }
    else if($this.hasClass("large")){
      $body.addClass("large").removeClass("small normal");
    }
  });