window.addEvent('domready', function() {
		if( $('userNumber') ){
			// if on search results page, allow last search to show up
			if( $('userNumber').getProperty( 'value' ) == '' ) {
				$('userNumber').setProperty( 'value', 'User Name' );
			}

			// if field has default text ( "Search" ) - change to blank 
			$('userNumber').addEvent('focus', function(){
				if( $('userNumber').getProperty( 'value' ) == 'User Name' ) {
					$('userNumber').setProperty( 'value', '' );	
				}
			});

			// if field has been modified, don't swap back to "Search" on blur
			$('userNumber').addEvent('blur', function(){
				if( $('userNumber').getProperty( 'value' ) == '' ) {
					$('userNumber').setProperty( 'value', 'User Name' );
				}				
			});
		}


});