JavaScript Background change using switch

Background change using switch

<script language=javascript>
<!--
var color=prompt("What is your color?","");
switch(color){
    case "red":
	document.bgColor="color";
	document.write("Red is hot.");
	break;
    case "yellow":
	document.bgColor=color;
	document.write("Yellow is warm.");
	break;
    case "green":
	document.bgColor="lightgreen";
	document.write("Green is soothing.");
	break;
    case "blue":
	document.bgColor="#RRGGBB";
	document.write("Blue is cool.");
	break;
    default:
	document.bgColor="white";
	document.write("Not available today. We'll use white");
	break;
    }
    //-->
</script>