rem:  var win = openDialog("chrome: "_blank", "chrome", node); 
add:  if (node) openDialog("chrome: "_blank", "chrome", node); 
context:   cmdShowPseudoClasses: function()  {    var idx = this.mDOMOutliner.currentIndex;    var node = this.getNodeFromRowIndex(idx);    var win = openDialog("chrome://inspector/content/viewers/dom/pseudoClassDialog.xul",                          "_blank", "chrome", node);  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/a7c48464e3280bcd1d3585d7cc0bc61c943ad5a5/dom.js/clean/extensions/inspector/resources/content/viewers/dom/dom.js