Added a fix for an undefined param being passed to a load.

[jquery.git] / src / ajax / ajax.js

diff --git a/src/ajax/ajax.js b/src/ajax/ajax.js
index 2ad9331..b872481 100644 (file)
--- a/src/ajax/ajax.js
+++ b/src/ajax/ajax.js
@@ -55,7 +55,7 @@ jQuery.fn.extend({
                // If the second parameter was provided
                if ( params )
                        // If it's a function
-                       if ( jQuery.isFunction( params.constructor ) ) {
+                       if ( jQuery.isFunction( params ) ) {
                                // We assume that it's the callback
                                callback = params;
                                params = null;
@@ -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");
        };
@@ -457,7 +457,8 @@ jQuery.extend({
                timeout: 0,
                contentType: "application/x-www-form-urlencoded",
                processData: true,
-               async: true
+               async: true,
+               data: null
        },
        
        // Last-Modified header cache for next request
@@ -798,7 +799,7 @@ 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 ) );
                                        });