Ticket #1808: fx.shadow.js.safaripatch

Index: fx.shadow.js
===================================================================
--- fx.shadow.js        (revision 3658)
+++ fx.shadow.js        (working copy)
@@ -37,7 +37,8 @@
                        $("div.fx-shadow-color", shadow).css("background-color", options.color);
                        
                        //Determine the stack order (attention: the zIndex will get one higher!)
-                       if(!cur.css("zIndex") || cur.css("zIndex") == "auto") {
+                       var safari2      = $.browser.safari && parseInt($.browser.version) < 522;
+                       if(!cur.css("zIndex") || cur.css("zIndex") == "auto" || (safari2 && cur.css("zIndex" == "normal"))) {
                                var stack = 0;
                                cur.css("position", (cur.css("position") == "static" ? "relative" : cur.css("position"))).css("z-index", "1");
                        } else {