function show(element, image) {

            
	var elm = document.getElementById(element);
	var img = document.getElementById(image);

	
	if (elm.style.display=="none") {
		elm.style.display="block";
		img.src="../images/minus.gif";		
		return;

	}
	
	
	if (elm.style.display=="block") {
		elm.style.display="none";
		img.src="../images/plus.gif";
		return;
	}	
		
}