public/javascripts/yui/progressbar/progressbar.js
function(value) {

			var container = this.get('element'),
				text = Lang.substitute(this.get(ARIA_TEXT_TEMPLATE),{
					value:value,
					minValue:this.get(MIN_VALUE),
					maxValue:this.get(MAX_VALUE)
				});
			container.setAttribute('aria-valuenow',value);
			container.setAttribute('aria-valuetext',text);
		}
function(value) {

			var container = this.get('element'),
				text = Lang.substitute(this.get(ARIA_TEXT_TEMPLATE),{
					value:value,
					minValue:this.get(MIN_VALUE),
					maxValue:this.get(MAX_VALUE)
				});
			container.setAttribute('aria-valuenow',value);
			container.setAttribute('aria-valuetext',text);
		}
function ( value ) { var container = this . get ( 'element' ) , text = Lang . substitute ( this . get ( ARIA_TEXT_TEMPLATE ) , { value : value , minValue : this . get ( MIN_VALUE ) , maxValue : this . get ( MAX_VALUE ) } ) ; container . setAttribute ( 'aria-valuenow' , value ) ; container . setAttribute ( 'aria-valuetext' , text ) ; }
Utility method to set the ARIA value attributes
@method _setAriaText
@return  void
@private
Utility method to set the ARIA value attributes