rem: delete(param.what); 
add: delete param.what; delete param.as; 
context: function show_macro(param) {   var img = this;   // if we have a thumbnail, display that   if (param.as == "thumbnail" && this.thumbnail) {      var url = this.href();      img = this.thumbnail;   } else      var url = img.getUrl();   delete(param.what);   param.src = img.getUrl();   Html.openLink({href: url});   renderImage(img, param);   Html.closeLink();   return;}
meta: 993	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/993/f8b9d1d1619a8900a24aae67e52981e79f4a61ed/macros.js/buggy/code/Image/macros.js