Element.implement({
	clearFocusResetBlur: function(attr){
		var valueString = this.get(attr);
		this.addEvents({
			'focus': function(){
				if( this.get('value') == valueString ) this.set('value','');
			},
			'blur': function(){
				if( this.get('value') == "" ) this.set('value',valueString);
			}
		});
	}
});