diff --git a/build/test/index.html b/build/test/index.html
index 31bf43d32..9ee1d4e4e 100644
--- a/build/test/index.html
+++ b/build/test/index.html
@@ -39,7 +39,7 @@
 
 			<input type="radio" name="radio2" id="radio2" checked/>
 			<input type="checkbox" name="check" id="check1" checked/>
-			<input type="checkbox" name="check" id="check2"/>
+			<input type="checkbox" id="check2"/>
 
 			<input type="hidden" name="hidden" id="hidden1"/>
 			<input type="text" style="display:none;" name="foo[bar]" id="hidden2"/>
diff --git a/src/jquery/jquery.js b/src/jquery/jquery.js
index 11cd56e6a..69628b37f 100644
--- a/src/jquery/jquery.js
+++ b/src/jquery/jquery.js
@@ -1522,9 +1522,9 @@ jQuery.extend({
 		"@": {
 			"=": "z==m[4]",
 			"!=": "z!=m[4]",
-			"^=": "!z.indexOf(m[4])",
-			"$=": "z.substr(z.length - m[4].length,m[4].length)==m[4]",
-			"*=": "z.indexOf(m[4])>=0",
+			"^=": "z && !z.indexOf(m[4])",
+			"$=": "z && z.substr(z.length - m[4].length,m[4].length)==m[4]",
+			"*=": "z && z.indexOf(m[4])>=0",
 			"": "z"
 		},
 		"[": "jQuery.find(m[2],a).length"
@@ -1583,6 +1583,11 @@ jQuery.extend({
 	 * @test t( "Attribute Exists", "a[@title]", ["google"] );
 	 * @test t( "Attribute Exists", "*[@title]", ["google"] );
 	 * @test t( "Attribute Exists", "[@title]", ["google"] );
+	 * 
+	 * @test t( "Non-existing part of attribute [@name*=bla]", "[@name*=bla]", [] ); 
+	 * @test t( "Non-existing start of attribute [@name^=bla]", "[@name^=bla]", [] ); 
+	 * @test t( "Non-existing end of attribute [@name$=bla]", "[@name$=bla]", [] ); 
+	 *
 	 * @test t( "Attribute Equals", "a[@rel='bookmark']", ["simon1"] );
 	 * @test t( "Attribute Equals", 'a[@rel="bookmark"]', ["simon1"] );
 	 * @test t( "Attribute Equals", "a[@rel=bookmark]", ["simon1"] );