rem: style.setProperty(propname, propval, ""); 
add: style.setProperty(propName.value, propValue.value, ""); 
context:   cmdNewProperty: function()  {    var propname = prompt("Enter the property name:", "");    if (!propname) return;    var propval = prompt("Enter the property value:", "");    if (!propval) return;        var style = this.getSelectedRule().style;    style.setProperty(propname, propval, "");    this.mPropsBoxObject.invalidate();  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/aea57c3ed9a7e2e2498e23222a629291054c4255/styleRules.js/buggy/extensions/inspector/resources/content/viewers/styleRules/styleRules.js