Fix for #1486. Prevent IE from throwing an error when triggering focus on hidden input.

src/event.js

@@ -193,7 +193,10 @@ jQuery.event = {
 			// Trigger the native events (except for clicks on links)
 			if ( fn && donative !== false && val !== false && !(jQuery.nodeName(element, 'a') && type == "click") ) {
 				this.triggered = true;
-				element[ type ]();
+				try {
+					element[ type ]();
+				// prevent IE from throwing an error for some hidden elements
+				} catch (e) {}
 			}
 
 			this.triggered = false;

test/unit/event.js

@@ -121,7 +121,7 @@ test("unbind(event)", function() {
 });
 
 test("trigger(event, [data], [fn])", function() {
-	expect(66);
+	expect(67);
 
 	var handler = function(event, a, b, c) {
 		equals( event.type, "click", "check passed data" );
@@ -193,6 +193,16 @@ test("trigger(event, [data], [fn])", function() {
 	// Trigger only the handlers (no native) and extra fn, with external event obj
 	// Triggers 9
 	equals( $("#firstp").triggerHandler("click", [eventObj, 1, "2", "abc"], handler), "test", "Verify handler response" );
+	
+	var pass = true;
+	try {
+		$('input:first')
+			.hide()
+			.trigger('focus');
+	} catch(e) {
+		pass = false;
+	}
+	ok( pass, "Trigger focus on hidden element" );
 
 	// have the extra handler override the return
 	// Triggers 9