Fixed #1942 but running jQuery.css() before jQuery.curCSS(). This way when...

Fixed #1942 but running jQuery.css() before jQuery.curCSS().  This way when the property is width or height it gets the values through calculation instead of just css first. This appears to fix the problem in Opera without hurting any of the other browsers.

src/core.js

@@ -755,7 +755,7 @@ jQuery.extend({
 			elem.style[ name ] = elem.style[ "old" + name ];
 	},
 
-	css: function( elem, name ) {
+	css: function( elem, name, force ) {
 		if ( name == "height" || name == "width" ) {
 			var old = {}, height, width;
 
@@ -805,7 +805,7 @@ jQuery.extend({
 				width;
 		}
 
-		return jQuery.curCSS( elem, name );
+		return jQuery.curCSS( elem, name, force );
 	},
 
 	curCSS: function( elem, name, force ) {

src/fx.js

@@ -254,8 +254,8 @@ jQuery.fx.prototype = {
 		if ( this.elem[this.prop] != null && this.elem.style[this.prop] == null )
 			return this.elem[ this.prop ];
 
-		var r = parseFloat(jQuery.curCSS(this.elem, this.prop, force));
-		return r && r > -10000 ? r : parseFloat(jQuery.css(this.elem, this.prop)) || 0;
+		var r = parseFloat(jQuery.css(this.elem, this.prop, force));
+		return r && r > -10000 ? r : parseFloat(jQuery.curCSS(this.elem, this.prop)) || 0;
 	},
 
 	// Start an animation from one number to another