First proposed solution for IE6/7 get/setAttribute quirks. Needs more testing, but solves some issues

src/support.js

@@ -7,8 +7,9 @@
 	var div = document.createElement("div");
 
 	div.style.display = "none";
+	div.setAttribute("className", "t");
 	div.innerHTML = "   <link/><table></table><a href='/a' style='color:red;float:left;opacity:.55;'>a</a><input type='checkbox'/>";
-
+	
 	var all = div.getElementsByTagName("*"),
 		a = div.getElementsByTagName("a")[0],
 		select = document.createElement("select"),
@@ -58,6 +59,8 @@
 		// (WebKit defaults to false instead of true, IE too, if it's in an optgroup)
 		optSelected: opt.selected,
 
+		attrFix: div.getAttribute("className") === "t",
+
 		// Will be defined later
 		deleteExpando: true,
 		optDisabled: false,