Opera 9.2 was interpreting .5 as 0.50, changing it to .55 lets the result be...

Opera 9.2 was interpreting .5 as 0.50, changing it to .55 lets the result be the same in all browsers: 0.55. Fixes #5344.

src/support.js

@@ -8,7 +8,7 @@
 		id = "script" + (new Date).getTime();
 
 	div.style.display = "none";
-	div.innerHTML = '   <link/><table></table><a href="/a" style="color:red;float:left;opacity:.5;">a</a><select><option>text</option></select>';
+	div.innerHTML = '   <link/><table></table><a href="/a" style="color:red;float:left;opacity:.55;">a</a><select><option>text</option></select>';
 
 	var all = div.getElementsByTagName("*"),
 		a = div.getElementsByTagName("a")[0];
@@ -40,7 +40,7 @@
 
 		// Make sure that element opacity exists
 		// (IE uses filter instead)
-		opacity: a.style.opacity === "0.5",
+		opacity: a.style.opacity === "0.55",
 
 		// Verify style float existence
 		// (IE uses styleFloat instead of cssFloat)