rem: else if (qx.util.validator.isValidNumber(propValue)) 
add: else if (qx.util.Validation.isValidNumber(propValue)) 
context:   proto._modifyOpacity = function(propValue, propOldValue, propData)  {    if(propValue == null || propValue > 1)    {      if (qx.sys.Client.isGecko())      {        this.removeStyleProperty(qx.ui.core.Widget.OPACITY_PROPERTY_MOZ);      }      else if (qx.sys.Client.isKhtml())      {        this.removeStyleProperty(qx.ui.core.Widget.OPACITY_PROPERTY_KHTML);      };      this.removeStyleProperty(qx.ui.core.Widget.OPACITY_PROPERTY_CSS3);    }    else if (qx.util.validator.isValidNumber(propValue))    {      propValue = propValue.limit(0, 1);      // should we omit geckos flickering here      // and limit the max value to 0.99?      if (qx.sys.Client.isGecko())      {        this.setStyleProperty(qx.ui.core.Widget.OPACTIY_PROPERTY_MOZ, propValue);      }      else if (qx.sys.Client.isKhtml())      {        this.setStyleProperty(qx.ui.core.Widget.OPACITY_PROPERTY_KHTML, propValue);      };      this.setStyleProperty(qx.ui.core.Widget.OPACITY_PROPERTY_CSS3, propValue);    };    return true;  };
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/cfcbb829f6fba5c885606fde737b1ad8b88fe740/QxWidget.js/clean/qooxdoo/source/script/gui/QxWidget.js