rem: oAnchor.focus(); 
add: /* Setting focus via a timer fixes a race condition in Firefox, IE and Opera where the browser viewport jumps as it trys to position and focus the menu. */  window.setTimeout(setFocus, 0); 
context:     focus: function() {        var oParent = this.parent;        var oAnchor = this._oAnchor;        var oActiveItem = oParent.activeItem;        if(            !this.cfg.getProperty("disabled") &&            oParent &&            oParent.cfg.getProperty("visible") &&            this.element.style.display != "none"        ) {            if(oActiveItem) {                oActiveItem.blur();            }            oAnchor.focus();            this.focusEvent.fire();        }    },
meta: 4707	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4707/50c3492c4c3c825dbd3401e134a19ed46799c456/menu.js/buggy/www/resources/yui/menu/menu.js