function toggleDiv(imgid,divid) {
	
	var thediv = document.getElementById(divid);
	var theimg = document.getElementById(imgid);

	if (thediv.style.display == "none")	{
	  thediv.style.display = "block";
	  theimg.src = "collapse.bmp";
	}
	else {
	  thediv.style.display = "none";
	  theimg.src = "expand.bmp";
	}

}