rem: styleOut.replace( "display:none;", "" ); 
add: styleOut = styleOut.replace( "display:none;", "" );  
context:     showItem : function ( itemOrId, show ) {        var item = null;        if ( itemOrId.constructor == String ) {            // Argument specifies item id.            item = document.getElementById( itemOrId );        } else {            // Argument is the item itself.            item = itemOrId;        }        if ( item ) {            var styleIn = item.getAttribute( "style" );            var styleOut = styleIn;            if ( show ) {                // Remove style="display:none;".                styleOut.replace( "display:none;", "" );            } else {                // Set style="display:none;".                if ( styleOut.indexOf( "display:none;" ) == -1 ) {                    // Add style the first time we need to.                    styleOut += "display:none;";                }            }            // Only set style if it's different.            if ( styleIn != styleOut ) {                item.setAttribute( "style", styleOut );            }        }    },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/579ee0241202ec03513d482fb388f0c7e081d7fd/nsContextMenu.js/clean/xpfe/browser/resources/content/nsContextMenu.js