rem: return (row < 0) ? "" : (this.data[row][this.copycol] || ""); 
add: return (row < 0 || copycol < 0) ? "" : (this.data[row][this.copycol] || ""); 
context:   handleCopy: function(row)  {    return (row < 0) ? "" : (this.data[row][this.copycol] || "");  },
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/3c4b298aa6840ad7a68bbbfab9346d7bc8af0755/pageInfo.js/buggy/xpfe/browser/resources/content/pageInfo.js