public/javascripts/yui/container/container.js
function(button) {
            var Button = YAHOO.widget.Button;

            // If we have an HTML button and YUI Button is on the page, 
            // get the YUI Button reference if available.
            if (Button && button && button.nodeName && button.id) {
                button = Button.getButton(button.id) || button;
            }

            return button;
        }
function(button) {
            var Button = YAHOO.widget.Button;

            // If we have an HTML button and YUI Button is on the page, 
            // get the YUI Button reference if available.
            if (Button && button && button.nodeName && button.id) {
                button = Button.getButton(button.id) || button;
            }

            return button;
        }
function ( button ) { var Button = YAHOO . widget . Button ; // If we have an HTML button and YUI Button is on the page,  // get the YUI Button reference if available. if ( Button && button && button . nodeName && button . id ) { button = Button . getButton ( button . id ) || button ; } return button ; }
Helper method to normalize button references. It either returns the
YUI Button instance for the given element if found,
or the passes back the HTMLElement reference if a corresponding YUI Button
reference is not found or YAHOO.widget.Button does not exist on the page.

@method _getButton
@private
@param {HTMLElement} button
@return {YAHOO.widget.Button|HTMLElement}
Helper method to normalize button references . It either returns the YUI Button instance for the given element if found or the passes back the HTMLElement reference if a corresponding YUI Button reference is not found or YAHOO . widget . Button does not exist on the page .