I'm not sure I understand what you mean. If I provide a fixed pixel value doesn't that prevent the chart from resizing when the window size changes?
Changing this line...
var chart1 = new FusionCharts("../FusionCharts/Column2D.swf", "ChId1", "100%", "100%", "0", "0", "FFFFFF", "exactFit");
To this...
var chart1 = new FusionCharts("../FusionCharts/Column2D.swf", "ChId1", "100", "100", "0", "0", "FFFFFF", "exactFit");
Makes the chart show up in the table but does not make it resizable.