X-Git-Url: http://git.asbjorn.it/?a=blobdiff_plain;f=src%2Fjquery%2Fjquery.js;h=38c8da303d8d980db5fc78405798bed43cdbb3c5;hb=7b3ab69fcfd5a53d7084bbe4b19a7f3e58d8564d;hp=ca4051f3d9cb23db233f6d95485c5d6beae58cf8;hpb=53e12752e00c2a86757ec15a0c871dee8ccd1bea;p=jquery.git

diff --git a/src/jquery/jquery.js b/src/jquery/jquery.js
index ca4051f..38c8da3 100644
--- a/src/jquery/jquery.js
+++ b/src/jquery/jquery.js
@@ -429,7 +429,7 @@ jQuery.fn = jQuery.prototype = {
 		// Look for the case where we're accessing a style value
 		if ( key.constructor == String )
 			if ( value == undefined )
-				return jQuery[ type || "attr" ]( this[0], key );
+				return this.length && jQuery[ type || "attr" ]( this[0], key ) || undefined;
 			else {
 				obj = {};
 				obj[ key ] = value;
@@ -985,7 +985,10 @@ jQuery.fn = jQuery.prototype = {
 	add: function(t) {
 		return this.pushStack( jQuery.merge(
 			this.get(),
-			typeof t == "string" ? jQuery(t).get() : t )
+			t.constructor == String ?
+				jQuery(t).get() :
+				t.length != undefined && !t.nodeName ?
+					t : [t] )
 		);
 	},
 
@@ -1268,7 +1271,7 @@ jQuery.extend({
 				return value.call( elem, [index] );
 				
 			// exclude the following css properties to add px
-			var exclude = /z-?index|font-?weight|opacity/i;
+			var exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i;
 
 			// Handle passing in a number to a CSS property
 			if ( value.constructor == Number && type == "curCSS" && !exclude.test(prop) )