Make sure disconnectedMatch test isn't done iff no matchesSelector im…

…plementation exists.

sizzle.js

@@ -1202,23 +1202,23 @@ if ( document.querySelectorAll ) {
 
 (function(){
 	var html = document.documentElement,
-		matches = html.matchesSelector || html.mozMatchesSelector || html.webkitMatchesSelector || html.msMatchesSelector,
-		pseudoWorks = false,
+		matches = html.matchesSelector || html.mozMatchesSelector || html.webkitMatchesSelector || html.msMatchesSelector;
 
+	if ( matches ) {
 		// Check to see if it's possible to do matchesSelector
 		// on a disconnected node (IE 9 fails this)
-		disconnectedMatch = !matches.call( document.createElement( "div" ), "div" );
+		var disconnectedMatch = !matches.call( document.createElement( "div" ), "div" ),
+			pseudoWorks = false;
 
-	try {
-		// This should fail with an exception
-		// Gecko does not error, returns false instead
-		matches.call( document.documentElement, "[test!='']:sizzle" );
+		try {
+			// This should fail with an exception
+			// Gecko does not error, returns false instead
+			matches.call( document.documentElement, "[test!='']:sizzle" );
 
-	} catch( pseudoError ) {
-		pseudoWorks = true;
-	}
+		} catch( pseudoError ) {
+			pseudoWorks = true;
+		}
 
-	if ( matches ) {
 		Sizzle.matchesSelector = function( node, expr ) {
 			// Make sure that attribute selectors are quoted
 			expr = expr.replace(/\=\s*([^'"\]]*)\s*\]/g, "='$1']");