function show_infobox(whichone){
	var box = "prodName" + whichone;
	var arrowpic = "arrow" + whichone;
	
	document.getElementById(arrowpic).style.display="block";
	document.getElementById(box).style.color = "#FF0000";
}

function hide_infobox(whichone){
	var box = "prodName" + whichone;
	var arrowpic = "arrow" + whichone;

	document.getElementById(arrowpic).style.display="none";
	document.getElementById(box).style.color = "#FFFFFF";
}