The animation with gwtQuery works on internal browser of eclipse and doesn't work on other browsers

[Manuel Palara]

The animation with gwtQuery that i've created works on internal browser of eclipse and doesn't work on other browsers, why? The error is: "For input String "Auto""

$("#carta").animate("top:'120px'", 10000); //work but cant see animation

$(carta).animate("opacity:'0'", 500); //work with animation in time $("#carta").animate("width:'+=500'", 2000, new Function(){ public void f(){ } });//for input string "63px"

gwt 2.6 tomcat 7.0