function showNotes(which,nSrc,oSrc){
	var img 	= document.getElementById(which,nSrc);
	var orgSrc	= "images/" + oSrc;
	var newSrc 	= "images/" + nSrc;
	
	if(img.getAttribute("alt")=="New Design"){
		img.setAttribute("src",newSrc);
		img.setAttribute("alt","Design Notes");
	}else{
		img.setAttribute("src",orgSrc);
		img.setAttribute("alt","New Design");
	}
}