Dynamically Change Brush Size in Gimp

<body> <center>Sorry you do not have frames enabled. Here is the link of the tutorial:<br> <a href="http://boitblog.blogspot.com/2007/07/creating-brush-with-variable-size.html">http://boitblog.blogspot.com/2007/07/creating-brush-with-variable-size.html</a></center> </body>