formDesigner.radios = Class.create(formDesigner.checkboxes, {
		initialize: function($super, container,obj, pob){
			$super(container,obj, pob);
			this.instID = 'formDesigner.radios.' + parseInt(Math.random()*1000000);
			this.object_name = "radios";
			this.object_type = "radios";
		},
		
		drawExample : function(value){
			var row = new Element('div', {className:'formDesignerExampleRow'});
			this.exampleContainer.insert(row);
			
			this.example = new Element('input', {type:'radio', name:this.instID, readonly:true, className:''});
			var titleDiv = new Element('label', {className:''}).update(value);
			row.insert(this.example);
			row.insert(titleDiv);
			
			//resize container;
			newHeight = 70 + (this.exampleContainer.select('.formDesignerExampleRow').length * 15); 
			this.container.setStyle('height:' + newHeight + 'px');
		}
	});