Check position of placeholder before setting it

git-svn-id: https://flot.googlecode.com/svn/trunk@125 1e0a6537-2640-0410-bfb7-f154510ff394

NEWS.txt

@@ -48,6 +48,8 @@ Bug fixes:
   (reported by Khurram).
 - Fixed a bug with returning y2 values in the selection event (fix
   by exists, issue 75).
+- Only set position relative on placeholder if it hasn't already a
+  position different from static (reported by kyberneticist, issue 95).
 
 
 Flot 0.5

jquery.flot.js

@@ -330,7 +330,8 @@
             canvasWidth = target.width();
             canvasHeight = target.height();
             target.html(""); // clear target
-            target.css("position", "relative"); // for positioning labels and overlay
+            if (target.css("position") == 'static')
+                target.css("position", "relative"); // for positioning labels and overlay
 
             if (canvasWidth <= 0 || canvasHeight <= 0)
                 throw "Invalid dimensions for plot, width = " + canvasWidth + ", height = " + canvasHeight;