function button(id ){
	this._pressed=false;
	this._events=['click()'];
	
	this.caption= function(caption) { if (caption==undefined) return this.elem.value; this.elem.value = caption ;};
	this.image 	= function(image)	{ if (image==undefined) return this.elem.style.backgroundImage; this.elem.style.backgroundImage = image ;} ;	
	
	this.pressed=function(press)	{
		if (press==undefined) return this._pressed;
	
		if(!press){
			this.elem.style.borderTopStyle='';
			this.elem.style.borderLeftStyle='';
			this.elem.style.borderRightStyle='';
			this.elem.style.borderBottomStyle='';
			this._pressed=false;
		}else{
			this.elem.style.borderTopStyle='inset';
			this.elem.style.borderLeftStyle='inset';
			this.elem.style.borderRightStyle='inset';
			this.elem.style.borderBottomStyle='inset';
			this._pressed=true;
		}

	}

}