X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fajax%2Fajax.js;h=346fdd71eb672d418bc2f8104cd8c814ac7c70eb;hb=9f93c7b3b858c4491e1d2aa7a680b9b1dd29b17c;hp=87fe73b943dc232769173bd7afc13526f7e3228b;hpb=5ebd5f604ac90dae6381f59cfa637621faabf932;p=jquery.git

diff --git a/src/ajax/ajax.js b/src/ajax/ajax.js
index 87fe73b..346fdd7 100644
--- a/src/ajax/ajax.js
+++ b/src/ajax/ajax.js
@@ -132,7 +132,7 @@ jQuery.fn.extend({
 });
 
 // If IE is used, create a wrapper for the XMLHttpRequest object
-if ( jQuery.browser.msie && typeof XMLHttpRequest == "undefined" )
+if ( !window.XMLHttpRequest )
 	XMLHttpRequest = function(){
 		return new ActiveXObject("Microsoft.XMLHTTP");
 	};
@@ -391,6 +391,11 @@ jQuery.extend({
 	 * @cat Ajax
 	 */
 	post: function( url, data, callback, type ) {
+		if ( jQuery.isFunction( data ) ) {
+			callback = data;
+			data = {};
+		}
+
 		return jQuery.ajax({
 			type: "POST",
 			url: url,
@@ -799,7 +804,7 @@ jQuery.extend({
 			// Serialize the key/values
 			for ( var j in a )
 				// If the value is an array then the key names need to be repeated
-				if ( a[j].constructor == Array )
+				if ( a[j] && a[j].constructor == Array )
 					jQuery.each( a[j], function(){
 						s.push( encodeURIComponent(j) + "=" + encodeURIComponent( this ) );
 					});