If I use this function: ... $('fieldset#box').slideToggle('fast',function(){$ ('input#title').focus();}); ...
In IE 6 when we give the second click in the element, this browser return an wrong says that it´s impossible to set the focus in an object that isn´t visible. So, all the functions break. It´s a bug in jQuery especefically in IE? Cause in FF and Opera is normal.