var div;
function show_info(divid,imgid){
	div = document.getElementById(divid);
	
	if( div.style.display == "none" ){
	
		div.style.display = "block";
		document.getElementById(imgid).src = "images/cl.jpg";
		
	} else {
	
		div.style.display = "none";
		document.getElementById(imgid).src = "images/op.jpg";
				
	}
}