function changeBg(elem, opt) {
	if(opt == 1) {
		elem.style.borderColor = elem.style.backgroundColor;
		elem.style.borderStyle = "inset";
	} else {
		elem.style.backgroundColor = elem.style.backgroundColor;
		elem.style.borderStyle = "solid";
		elem.style.borderColor = elem.style.backgroundColor;	
	}
}