function ActiveButton(btn, over, down){		

		this.button = btn;

		this.buttonSrc = btn.src;

		this.overSrc = over.src;

		this.downSrc = down.src;

		this.loaded = false;

		this.selected = false;

		

		this.buttonOver = buttonOver;

		this.buttonDown = buttonDown;

		this.buttonOut = buttonOut;

		this.buttonUp = buttonUp;		

		this.setLoaded = setLoaded;

		this.setSelected = setSelected;

	}

		

	function buttonOver(){

		if(this.loaded && ! this.selected){

			this.button.src = this.overSrc;		

		}

	}

	

	function buttonDown(){

		if(this.loaded && ! this.selected){

			this.button.src = this.downSrc;

		}

	}

	

	function buttonUp(){

		if(this.loaded && ! this.selected){

			this.buttonOver();

		}

	}

				

	function buttonOut(){

		if(this.loaded && ! this.selected){

			this.button.src = this.buttonSrc;

		}

	}		

	

	function setLoaded(){

		this.loaded = true;

	}

	

	function setSelected(isSel){		

		if(isSel){

			this.buttonOver();

			this.selected = true;

		}else{

			this.selected = false;

			this.buttonOut();

		}

	}