ensure SizeHelper which isn't attached to a tb (e.g. a container) hav…

…e a reasonable float_width/height set

 - if style isn't present, then just use the curent size

jtoolbar.js

@@ -388,10 +388,17 @@ var JTB = function() {
                 var w = parseInt(e.style.width, 10);
                 this.float_width = this.vert_orient_width = w;
             }
+            else if(tb === null) {
+                this.float_width = this.e.offsetWidth;
+            }
+
             if(e.style.height !== '') {
                 var h = parseInt(e.style.height, 10);
                 this.float_height = this.horiz_orient_height = h;
             }
+            else if(tb === null) {
+                this.float_height = this.e.offsetHeight;
+            }
         },
 
         /**