X-Git-Url: http://git.asbjorn.it/?a=blobdiff_plain;f=src%2Feffects.js;h=d9e9a8b3137bfb51b2f065dda34ed2591ba07375;hb=85d9343271da85fc945bf37a604873eaf247a3a7;hp=bebcc431fe511188afdabbbf84497312ace65801;hpb=217a9919c3adcde198774301aa082e5be8a6489d;p=jquery.git

diff --git a/src/effects.js b/src/effects.js
index bebcc43..d9e9a8b 100644
--- a/src/effects.js
+++ b/src/effects.js
@@ -185,7 +185,7 @@ jQuery.fn.extend({
 
 				} else {
 					var parts = rfxnum.exec(val),
-						start = e.cur() || 0;
+						start = e.cur();
 
 					if ( parts ) {
 						var end = parseFloat( parts[2] ),
@@ -336,8 +336,12 @@ jQuery.fx.prototype = {
 			return this.elem[ this.prop ];
 		}
 
-		var r = parseFloat( jQuery.css( this.elem, this.prop ) );
-		return r || 0;
+		var parsed,
+			r = jQuery.css( this.elem, this.prop );
+		// Empty strings, null, undefined and "auto" are converted to 0,
+		// complex values such as "rotate(1rad)" are returned as is,
+		// simple values such as "10px" are parsed to Float.
+		return isNaN( parsed = parseFloat( r ) ) ? !r || r === "auto" ? 0 : r : parsed;
 	},
 
 	// Start an animation from one number to another
@@ -505,42 +509,17 @@ if ( jQuery.expr && jQuery.expr.filters ) {
 }
 
 function defaultDisplay( nodeName ) {
-	var stylesheets = document.styleSheets,
-			disabled = [],
-			elem, display, style, idx;
-
 	if ( !elemdisplay[ nodeName ] ) {
+		var elem = jQuery("<" + nodeName + ">").appendTo("body"),
+			display = elem.css("display");
 
-		// #8099 - If the end-dev has globally changed a default
-		// display, we can temporarily disable their styles to check
-		// for the correct default value
-		for ( idx = 0; idx < stylesheets.length; ++idx  ) {
-			style = stylesheets[ idx ];
-			disabled[ idx ] = style.disabled;
-			style.disabled = true;
-		}
-		
-		// To accurately check an element's default display value, 
-		// create a temp element and check it's default display, this
-		// will ensure that the value returned is not a user-tampered
-		// value.
-		elem = jQuery("<" + nodeName + ">").appendTo("body");
-		display = elem.css("display");
-		
-		// Remove temp element
 		elem.remove();
 
 		if ( display === "none" || display === "" ) {
 			display = "block";
 		}
-		
-		// Store the correct default display
-		elemdisplay[ nodeName ] = display;
 
-		// Restore stylesheets
-		for ( idx = 0; idx < stylesheets.length; ++idx  ) {
-			stylesheets[ idx ].disabled = disabled[ idx ];
-		}
+		elemdisplay[ nodeName ] = display;
 	}
 
 	return elemdisplay[ nodeName ];