public/javascripts/yui/event/event-debug.js
function(ev) {
                var x = ev.pageX;
                if (!x && 0 !== x) {
                    x = ev.clientX || 0;

                    if ( this.isIE ) {
                        x += this._getScrollLeft();
                    }
                }

                return x;
            }
function(ev) {
                var x = ev.pageX;
                if (!x && 0 !== x) {
                    x = ev.clientX || 0;

                    if ( this.isIE ) {
                        x += this._getScrollLeft();
                    }
                }

                return x;
            }
function ( ev ) { var x = ev . pageX ; if ( ! x && 0 !== x ) { x = ev . clientX || 0 ; if ( this . isIE ) { x += this . _getScrollLeft ( ) ; } } return x ; }
Returns the event's pageX
@method getPageX
@param {Event} ev the event
@return {int} the event's pageX
@static
Returns the event s pageX